1 The fool hath said in his heart, There is no God. They are corrupt, they have done abominable works, there is none that doeth good. 2 The LORD looked down from heaven upon the children of men, to see if there were any that did understand, and seek God. 3 They are all gone aside, they are all together become filthy: there is none that doeth good, no, not one. 4 Have all the workers of iniquity no knowledge? who eat up my people as they eat bread, and call not upon the LORD. 5 There were they in great fear: for God is in the generation of the righteous. 6 Ye have shamed the counsel of the poor, because the LORD is his refuge. 7 Oh that the salvation of Israel were come out of Zion! when the LORD bringeth back the captivity of his people, Jacob shall rejoice, and Israel shall be glad.
[AD 56] Romans on Psalms 14:1-3
What then? are we better than they? No, in no wise: for we have before proved both Jews and Gentiles, that they are all under sin; As it is written, There is none righteous, no, not one: There is none that understandeth, there is none that seeketh after God. They are all gone out of the way, they are together become unprofitable; there is none that doeth good, no, not one. Their throat is an open sepulchre; with their tongues they have used deceit; the poison of asps is under their lips: Whose mouth is full of cursing and bitterness: Their feet are swift to shed blood: Destruction and misery are in their ways: And the way of peace have they not known: There is no fear of God before their eyes. [Psalms 14:1-3] Now we know that what things soever the law saith, it saith to them who are under the law: that every mouth may be stopped, and all the world may become guilty before God. Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin. But now the righteousness of God without the law is manifested, being witnessed by the law and the prophets; Even the righteousness of God which is by faith of Jesus Christ unto all and upon all them that believe: for there is no difference: For all have sinned, and come short of the glory of God; Being justified freely by his grace through the redemption that is in Christ Jesus: Whom God hath set forth to be a propitiation through faith in his blood, to declare his righteousness for the remission of sins that are past, through the forbearance of God; To declare, I say, at this time his righteousness: that he might be just, and the justifier of him which believeth in Jesus.
[AD 339] Eusebius of Caesarea on Psalms 14:1
Some have denied that there is a divine spirit altogether. They have openly professed that God is not the ruler of everything, that his name is nothing but empty and that he is of no substance. Others worship gods who do not exist, denying him who is God alone. Some suggest that indeed there is a God in name, but they contend that he does not oversee earthly matters or look on human affairs. In summary, therefore, all these people have come together into the single position of atheism (godlessness), believing that there is no God. Since they are not bold enough to announce this openly, they persuade themselves in their hearts, being foolish and senseless in the matter of truth, that God does not exist. (A natural understanding about God and the innate seeds of the instinct drive all of them to confess a recognition of God; they are not so bold to deny this fact with their lips, so they pretend to recognize him not as the only God but as an innumerable plurality.) … Their godless position is brought to light from their works (as indeed a tree is judged by its fruit), with their villainy and a way of living like it. They have poisoned their own spirit, betraying it to their bodies with whatever corruption, and as men act in madness with men and through whatever other monstrous and abominable acts, they defile their own selves. In this way it was shown that even if they mustered ten thousand gods, even if they blared out with their lips and confessed God governs all things, in their hearts, and really in their minds, there is not the least recognition of God. Such, therefore, was the life of these people before the advent of our Savior.

[AD 341] Asterius of Cappadocia on Psalms 14:1
“There is no God.” There is no foundation, then how does the building stand? There is no keel, then how does the ship stabilize? There is no captain, then how is the ship readied? There is no builder, then how is the house built? There is no architect, then who founded the city? There is no farmer, then how do the fields bear their bundles? There is no music, then how can there be the harmony on the lyre of the world? There is no one to foresee, then how does foreknowledge permeate everything? There is no charioteer, then how is the chariot of the four elements driven? There is no sculptor, then how are statues of people in the world crafted? There are no builders of arches, then who has built the arch of heaven for you? There is no gold worker, then who has placed the golden disc sun in heaven as on a table? There is none who brings a torch, then who gave the moon of the night to you as a silver torch? There is none who brings light, and who has given to you a light with clear splendor? There is none who alone makes great lights, then who has put the ascending lamps of the stars in the sky for you?… Is there no Creator about whom the creature testifies?

[AD 341] Asterius of Cappadocia on Psalms 14:1
It was the fool who said through Pharoah, “I have not known this God”; and the depth of the sea became a tomb for him. The fool said through Sennecharib, “God is not able to snatch Hezekiah from my hands,” and he was killed by his sons. The fool said through Nebuchadnezzar, “Who is this God who can snatch you from my hand? Who is the most powerful of men?” … Judas the denier of God was destroyed by a noose because he had deemed God as a man to be betrayed.

[AD 341] Asterius of Cappadocia on Psalms 14:1
They are corrupt—wounded and rotten, smelling rank, seeping foulness and poison, not seeking medicine. They become abominable like pigs rolling in the mud of sin; like dogs returning to vomit, they run with rage.… Because they have despised the thinking of God, pious people despise them. They are corrupt like worm-infested garments, as rusted iron, as those who have touched death and the ashes of dead bones.… “There is no one who does good, not one.” Not Herod killing innocent babies, not the Jew who called Jesus Beelzebub when he cast out demons, not the one endeavoring to keep the law perfectly, not priests acting dishonorably, not scribes writing for naught, not Pharisees pressing and pushing rules, not Sadducees debating, not Judas selling him, not the master boxing the slave’s ear, not Pilate condemning him, not the people shouting.… “There is no one who speaks good,” when all the disciples fled as they abandoned him. John ran off naked. Peter denied him, the disciples fled, the spear of doubt pierced the soul of Mary. There was no one who showed the fruit of love in his suffering.… Even after his death, the soldier pierced his side.… Surely he has visited us and wants to save, but none desires to be shown the medicine.

[AD 373] Athanasius of Alexandria on Psalms 14:1
This statement [about fools] is directly followed by one pointing out that their actions correspond with their thoughts: “They are corrupt, and their behavior is evil.” The unrighteous person corrupts his body in every possible way: stealing, committing adultery, cursing, getting drunk, and doing similar things.… Count on it: those who are fools in their thoughts will do wicked deeds. As the Lord said [to the Pharisees], “How can you speak good things when you are evil?” And they truly were evil, because their thoughts were wicked.

[AD 430] Augustine of Hippo on Psalms 14:1
"The fool has said in his heart, There is no God" [Psalm 14:1]. For not even have certain sacrilegious and abominable philosophers, who entertain perverse and false notions of God, dared to say, "There is no God." Therefore it is, has said "in his heart;" for that no one dares to say it, even if he has dared to think it. "They are corrupt, and become abominable in their affections:" that is, while they love this world and love not God; these are the affections which corrupt the soul, and so blind it, that the fool can even say, "in his heart, There is no God. For as they did not like to retain God in their knowledge, God gave them over to a reprobate mind." [Romans 1:28] "There is none that does goodness, no not up to one." "Up to one," can be understood either with that one, so that no man be understood: or besides one, that the Lord Christ may be excepted. As we say, This field is up to the sea; we do not of course reckon the sea together with the field. And this is the better interpretation, so that none be understood to have done goodness up to Christ; for that no man can do goodness, except He shall have shown it. And that is true; for until a man know the one God, he cannot do goodness.

[AD 458] Theodoret of Cyrus on Psalms 14:1
[Like the Assyrian army in the days of Hezekiah], all will come to know through experience the one fighting against them; fear will strike them from a source they did not expect. I mean, who would have thought they would be destroyed by an angel? That God cares for the Jews? Those who mocked the counsel of poor and lowly Hezekiah for trusting in God rather than arms will realize that the one who made himself dependent on God enjoyed a hope that was not disappointed.

[AD 585] Cassiodorus on Psalms 14:1
“They are corrupt.” By turning away from the sound thinking found in the Scriptures, they show that they have fallen into corrupt patterns of thought. The punishment for sin comes next. Defiled by their despicable unbelief, they become abominable to the Lord by their errors.

[AD 585] Cassiodorus on Psalms 14:1
We cannot do good unless we have come to Christ through God’s mercy. For when we approach him and do not turn away from him, without a doubt every good is performed. This is the end that was promised in the heading of the psalm.

[AD 749] John Damascene on Psalms 14:1
The fact that God exists is not doubted by those who accept the sacred Scriptures—both the Old and New Testaments, I mean—or by the majority of the Greeks, for, as we have said, the knowledge of God’s existence has been revealed to us through nature. However, since the wickedness of the evil one has so prevailed over people’s nature as even to drag some of them down to the most unspeakable and extremely wicked abyss of perdition and to make them say that there is no God, … then the Lord’s disciples and apostles, made wise by the all-Holy Spirit, did by his power and grace show signs from God and draw up those people alive in the net of their miracles from the depths of the ignorance of God to the light of his knowledge.

[AD 341] Asterius of Cappadocia on Psalms 14:2
When you hear the Lord looks down from heaven, think not of his divine and incorporeal nature that he has bowed and bent down, or has bent his knee or nodded his head, but realize his visitation, forgiveness and kindness. Although he is said to have a head, ears, eyes, mouth and hands, and to sit and to rise, yet he is not altogether constituted of members and parts. So he does not literally look down but shows his own mercy. He looks down from heaven, not through fences and gates in the sky, but because from heaven he has visited humankind.… He sees them to serve them and to embrace them as a friend.… He appears to them who have faith in him in order that he may see who is sick and who needs the doctor and who is poor and who requires Christ, the storehouse of the Father.… Then after they see the Lord of the prophets has looked down from heaven so that he may see, … they say, “It is not enough, Lord, that you look down from heaven. Descend.… Come, … Son of the Father. Seek what is made in your image.”

[AD 430] Augustine of Hippo on Psalms 14:2
"The Lord from heaven looked out upon the sons of men, to see if there be one understanding, or seeking after God" [Psalm 14:2]. It may be interpreted, upon the Jews; as he may have given them the more honourable name of the sons of men, by reason of their worship of the One God, in comparison with the Gentiles; of whom I suppose it was said above, "The fool has said in his heart, There is no God," etc. Now the Lord looks out, that He may see, by His holy souls: which is the meaning of, "from heaven." For by Himself nothing is hid from Him.

[AD 339] Eusebius of Caesarea on Psalms 14:3
It was right to show openly the magnitude of the disease that lingered with sinister purpose for all people before the advent of the Savior: as it was manifested to all, his sojourn on earth became straightforwardly necessary. As all have sinned, all lacked the glory of God, and now they are all justified by his grace.

[AD 341] Asterius of Cappadocia on Psalms 14:3
Everywhere they all have turned to tyranny. They no longer cling to the prophets. Come, King, appear, and they will fear your authority. All have turned from the ways of the prophets. Come, O Way, and lead back those who have wandered away.… Humankind was created right by God, … but they have turned away by choice to evil.… They have turned away from their right nature.… “There is no one who does good, no, not one.” From head to foot, from rich to poor, the whole world grows sick.

[AD 341] Asterius of Cappadocia on Psalms 14:3
What do they know? That God is an avenger. He is coming as judge of the living and the dead. They know that he is going to return to each one according to his works.… And what do they not know? That God looks down from heaven. What do they not know? That those who do evil displease him. What do they not know? They do not wish to know the ways of God.… And now there are wars, pestilence and volcanoes [earthquakes]. Many never come to their senses concerning their sins, and they are punished with threatening evils. What do they not know? The will of God, his good and celestial promises, his treasures, the delights of paradise, eternal life.

[AD 430] Augustine of Hippo on Psalms 14:3
"All have gone out of the way, they have together become useless:" that is, the Jews have become as the Gentiles, who were spoken of above. "There is none that does good, no not up to one" [Psalm 14:3], must be interpreted as above. "Their throat is an open sepulchre." Either the voracity of the ever open palate is signified: or allegorically those who slay, and as it were devour those they have slain, into whom they instil the disorder of their own conversation. Like to which with the contrary meaning is that which was said to Peter, "Kill and eat;" [Acts 10:13] that he should convert the Gentiles to his own faith and good conversation. "With their tongues they have dealt craftily." Flattery is the companion of the greedy and of all bad men. "The poison of asps is under their lips." By "poison," he means deceit; and "of asps," because they will not hear the precepts of the law, as asps "will not hear the voice of the charmer;" which is said more clearly in another Psalm. "Whose mouth is full of cursing and bitterness:" this is, "the poison of asps." "Their feet are swift to shed blood." He here shows forth the habit of ill doing. "Destruction and unhappiness" are "in their ways." For all the ways of evil men are full of toil and misery. Hence the Lord cries out, "Come unto Me, all you that labour and are heavy laden, and I will refresh you. Take My yoke upon you, and learn of Me, for I am meek and lowly in heart. For My yoke is easy and My burden light." [Matthew 11:28-30] "And the way of peace have they not known:" that way, namely, which the Lord, as I said, mentions, in the easy yoke and light burden. "There is no fear of God before their eyes." These do not say, "There is no God;" but yet they do not fear God.

[AD 430] Augustine of Hippo on Psalms 14:4
"Shall not all, who work iniquity, know?" [Psalm 14:4]. He threatens the judgment. "Who devour My people as the food of bread:" that is, daily. For the food of bread is daily food. Now they devour the people, who serve their own ends out of them, not referring their ministry to the glory of God, and the salvation of those over whom they are.

[AD 390] Diodorus of Tarsus on Psalms 14:5
Such people will never learn from experience what a harsh thing it is to do wrong to the Lord’s people, so bitter are they toward us as to wish to treat us like a meal of bread.… Since they are ready to swallow us raw, then, and do not have the Lord before their eyes, fear will overtake them from a quarter where they do not expect it.

[AD 430] Augustine of Hippo on Psalms 14:5
"They have not called upon the Lord." For he does not really call upon Him, who longs for such things as are displeasing to Him. "There they trembled for fear, where no fear was" [Psalm 14:5]: that is, for the loss of things temporal. For they said, "If we let Him thus alone, all men will believe in Him; and the Romans will come, and take away both our place and nation." [John 11:48] They feared to lose an earthly kingdom, where no fear was; and they lost the kingdom of heaven, which they ought to have feared. And this must be understood of all temporal goods, the loss of which when men fear, they come not to things eternal.

[AD 339] Eusebius of Caesarea on Psalms 14:6
These words that are now put forth can be understood in my opinion in light of the Jews trying to upset the plan of the Savior, because they thought that he was lacking power. They did not consider carefully the treasure of his divinity. So they always contradicted his teaching, and the power of his miracles they misrepresented as not from divine power but as having been worked through some other source.

[AD 341] Asterius of Cappadocia on Psalms 14:6
Like the general over the soldiers and the king over the senate, God is over the generation of the righteous.… If God is in the midst of two or three, how much more is he found in the generation of the righteous where there is a battle-free life, a lack of sadness, rest and inheritance and a kingdom without end.

[AD 430] Augustine of Hippo on Psalms 14:6
"For God is in the just generation." It refers to what went before, so that the sense is, "shall not all they that work iniquity know that the Lord is in the just generation;" that is, He is not in them who love the world. For it is unjust to leave the Maker of the worlds, and "serve the creature more than the Creator." [Romans 1:25] You have shamed the counsel of the poor, for the Lord is his hope [Psalm 14:6]: that is, you have despised the humble coming of the Son of God, because ye saw not in Him the pomp of the world: that they, whom he was calling, should put their hope in God alone, not in the things that pass away.

[AD 430] Augustine of Hippo on Psalms 14:7
"Who will give salvation to Israel out of Sion?" [Psalm 14:7]. Who but He whose humiliation you have despised? Is understood. For He will come in glory to the judgment of the quick and the dead, and the kingdom of the just: that, forasmuch as in that humble coming "blindness has happened in part unto Israel, that the fullness of the Gentiles might enter in," [Romans 11:25] in that other should happen what follows, "and so all Israel should be saved." For the Apostle too takes that testimony of Isaiah, where it is said, "There shall come out of Sion He who shall turn away ungodliness from Jacob:" [Isaiah 59:20] for the Jews, as it is here, "Who shall give salvation to Israel out of Sion?" "When the Lord shall turn away the captivity of His people, Jacob shall rejoice, and Israel shall be glad." It is a repetition, as is usual: for I suppose, "Israel shall be glad," is the same as, "Jacob shall rejoice."