1 LORD, my heart is not haughty, nor mine eyes lofty: neither do I exercise myself in great matters, or in things too high for me. 2 Surely I have behaved and quieted myself, as a child that is weaned of his mother: my soul is even as a weaned child. 3 Let Israel hope in the LORD from henceforth and for ever.
[AD 253] Origen of Alexandria on Psalms 131:1-2
Celsus, … as one who has heard the subject of humility greatly talked about but who has not been at pains to understand it, would wish to speak evil of that humility that is practiced among us, and imagines that it is borrowed from some words of Plato imperfectly understood, where he expresses himself in the Laws as follows: “Now God, according to the ancient account, having in himself both the beginning and end and middle of all existing things, proceeds according to nature and marches straight on. He is constantly followed by justice, which is the avenger of all breaches of the divine law: he who is about to become happy follows [justice] closely in humility, and becomingly adorned.” He did not observe, however, that in writers much older than Plato the following words occur in a prayer: “Lord, my heart is not haughty or my eyes lofty, neither do I walk in great matters, nor in things too wonderful for me; if I had not been humble,” etc. Now these words show that one who is of humble mind does not by any means humble himself in an unseemly or inauspicious manner, falling down on his knees or casting himself headlong on the ground, putting on the dress of the miserable or sprinkling himself with dust. But he who is of humble mind in the sense of the prophet, while “walking in great and wonderful things,” which are above his capacity—namely, those doctrines that are truly great and those thoughts that are wonderful—“humbles himself under the mighty hand of God.” If there are some, however, who through their stupidity have not clearly understood the doctrine of humiliation and act as they do, it is not our doctrine that is to be blamed; but we must extend our forgiveness to the stupidity of those who aim at higher things and owing to their foolishness of mind fail to attain them. He who is “humble and becomingly adorned,” is so in greater degree than Plato’s “humble and becomingly adorned” individual: for he is humble and becomingly adorned on the one hand, because “he walks in things great and wonderful,” which are beyond his capacity; and humble, on the other hand, because, while being in the midst of such, he yet voluntarily humbles himself, not under anyone at random but under “the mighty hand of God,” through Jesus Christ, the teacher of such instruction, “who did not deem equality with God a thing to be eagerly clung to, but made himself of no reputation and took on him the form of a servant, and being found in fashion as a man, humbled himself and became obedient unto death, even the death of the cross.” And so great is this doctrine of humiliation that it has no ordinary individual as its teacher; but our great Savior says, “Learn of me, for I am meek and lowly of heart, and you shall find rest for your souls.”

[AD 367] Hilary of Poitiers on Psalms 131:1
This Psalm, a short one, which demands an analytical rather than a homiletical treatment, teaches us the lesson of humility and meekness. Now, as we have in a great number of other places spoken about humility, there is no need to repeat the same things here. Of course we are bound to bear in mind in how great need our faith stands of humility when we hear the Prophet thus speaking of it as equivalent to the performance of the highest works: O Lord, my heart is not exalted. For a troubled heart is the noblest sacrifice in the eyes of God. The heart, therefore, must not be lifted up by prosperity, but humbly kept within the bounds of meekness through the fear of God.

Neither have My eyes been lifted up. The strict sense of the Greek here conveys a different meaning; οὐδὲ ἐμετεωρίσθησαν οἱ ὀφθαλμοί μου, that is, have not been lifted up from one object to look on another. Yet the eyes must be lifted up in obedience to the Prophet's words: Lift up your eyes and see who has displayed all these things. Isaiah 40:26 And the Lord says in the gospel: Lift up your eyes, and look on the fields, that they are white unto harvest. John 4:35 The eyes, then, are to be lifted up: not, however, to transfer their gaze elsewhere, but to remain fixed once for all upon that to which they have been raised.

Then follows: Neither have I walked amid great things, nor amid wonderful things that are above me. It is most dangerous to walk amid mean things, and not to linger amid wonderful things. God's utterances are great; He Himself is wonderful in the highest: how then can the psalmist pride himself as on a good work for not walking amid great and wonderful things? It is the addition of the words, which are above me, that shows that the walking is not amid those things which men commonly regard as great and wonderful. For David, prophet and king as he was, once was humble and despised and unworthy to sit at his father's table; but he found favour with God, he was anointed to be king, he was inspired to prophesy. His kingdom did not make him haughty, he was not moved by hatreds: he loved those that persecuted him, he paid honour to his dead enemies, he spared his incestuous and murderous children. In his capacity of sovereign he was despised, in that of father he was wounded, in that of prophet he was afflicted; yet he did not call for vengeance as a prophet might, nor exact punishment as a father, nor requite insults as a sovereign. And so he did not walk amid things great and wonderful which were above him.

Let us see what comes next: If I was not humble-minded but have lifted up my soul. What inconsistency on the Prophet's part! He does not lift up his heart: he does lift up his soul. He does not walk amid things great and wonderful that are above him; yet his thoughts are not mean. He is exalted in mind and cast down in heart. He is humble in his own affairs: but he is not humble in his thought. For his thought reaches to heaven, his soul is lifted up on high. But his heart, out of which proceed, according to the Gospel, evil thoughts, murders, adulteries, fornications, thefts, false witness, railings Matthew 15:19, is humble, pressed down beneath the gentle yoke of meekness. We must strike a middle course, then, between humility and exaltation, so that we may be humble in heart but lifted up in soul and thought.
[AD 420] Jerome on Psalms 131:1-2
I know your humility. I know that you can say with sincerity, “Lord, my heart is not haughty or my eyes lofty”; I know that in your heart as in that of your mother the pride through which the devil fell has no place. It would be time wasted to write to you about it; for there is no greater folly than to teach a pupil what he knows already. But now that you have despised the boastfulness of the world, do not let the fact inspire you with new boastfulness. Harbor not the secret thought that having ceased to court attention in garments of gold you may begin to do so in mean attire. And when you come into a room full of brothers and sisters, do not sit in too low a place or plead that you are unworthy of a footstool. Do not deliberately lower your voice as though worn out with fasting; or, leaning on the shoulder of another, mimic the tottering gait of one who is faint. Some women, it is true, disfigure their faces so that they may appear to other people to fast. As soon as they catch sight of any one, they groan, they look down; they cover up their faces, except for one eye, which they keep free to see with. Their dress is somber, their girdles are of sackcloth, their hands and feet are dirty; only their stomachs—which cannot be seen—are hot with food. Of these the psalm is sung daily: “The Lord will scatter the bones of them that please themselves.” Others change their garb and assume the appearance of men, being ashamed of being what they were born to be—women. They cut off their hair and are not ashamed to look like eunuchs. Some clothe themselves in goat’s hair, and, putting on hoods, pretending to become children again by making themselves look like so many owls.

[AD 430] Augustine of Hippo on Psalms 131:1-2
"Lord, my heart was not lifted up, neither were my eyes raised on high" [Psalm 131:1]; "I have not exercised myself in great matters, nor in wonderful things which are too high for me" [Psalm 131:2]. Let this be more plainly spoken and heard. I have not been proud: I have not wished to be known among men as for wondrous powers; nor have I sought anything beyond my strength, whereby I might boast myself among the ignorant. As that Simon the sorcerer wished to advance into wonders above himself, on that account the power of the Apostles more pleased him, than the righteousness of Christians....What is above my strength, he says, I have not sought; I have not stretched myself out there, I have not chosen to be magnified there. How deeply this self-exaltation in the abundance of graces is to be feared, that no man may pride himself in the gift of God, but may rather preserve humility, and may do what is written: "The greater you are, the more humble yourself, and you shall find favour before the Lord:" [Sirach 3:18] how deeply pride in God's gift should be feared, we must again and again impress upon you....

[AD 430] Augustine of Hippo on Psalms 131:1
"Lord, my heart is not lifted up" [Psalm 131:1]. He has offered a sacrifice. Whence do we prove that he has offered a sacrifice? Because humility of heart is a sacrifice....If there is no sacrifice, there is no Priest. But if we have a High Priest in Heaven, who intercedes with the Father for us (for He has entered into the Holy of Holies, within the veil),...we are safe, for we have a Priest; let us offer our sacrifice there. Let us consider what sacrifice we ought to offer; for God is not pleased with burnt-offerings, as you have heard in the Psalm. But in that place he next shows what he offers: The sacrifice of God is a troubled spirit: a broken and a contrite heart, O God, shall Thou not despise.

[AD 435] John Cassian on Psalms 131:1-2
And so it is most clearly established by examples and testimonies from Scripture that the mischief of pride, although it comes later in the order of the combat, is yet earlier in origin and is the beginning of all sins and faults. Neither is it (like the other vices) simply fatal to its opposite virtue—that is, humility—but it is also at the same time destructive of all virtues. Nor does it only tempt ordinary folk and small people, but chiefly those who already stand on the heights of valor. For thus the prophet speaks of this spirit, “His food is choice.” And so the blessed David, although he guarded the recesses of his heart with the utmost care, so that he dared to say to him from whom the secrets of his conscience were not hid, “Lord, my heart is not exalted, nor are my eyes lifted up; neither have I walked in great matters, nor in wonderful things above me. If I was not humble” and again, “He that is proud shall not dwell in the midst of my house.” Still, because he knew how hard that watchfulness is even for those that are perfect, he did not so presume on his own efforts, but prayed to God and implored his help, that he might escape unwounded by the darts of this foe, saying, “Let not the foot of pride come to me.” For he feared and dreaded falling into that which is said of the proud, namely, “God resists the proud” and “Every one that exalts his heart is unclean before the Lord.”

[AD 580] Martin of Braga on Psalms 131:1-2
Now your goodness must listen briefly while I explain how this virtue may be obtained. First of all, if you intend to start a good work, you will begin it not with the intention of acquiring praise but for the love and desire of doing good. Then, when this good task, whatever it is, has been completed, you will guard your heart most cautiously, lest you fall under the influence of human favors and overestimate yourself, thus trying to please yourself or to look for some renown from any deed. For glory is like the human shadow: if you follow it, it runs away; if you run away, it follows. Always value yourself least of all and remember, whenever any good befalls you throughout your life, ascribe it all to God who gave it, not to yourself who received it, convincing yourself with these words of the apostle Paul: “What have you that you have not received? And if you have received it, why do you boast as if you had not received it?” And also reflecting on these words of the apostle: “Every good gift and every perfect gift is from above, coming down from the Father of lights.” And when you have built in your heart a temple to the Holy Spirit, using these most precious stones of holy humility, then pray in it, using the song of the prophet David. Not in words only but in deeds shall you sing: “O Lord, my heart is not proud, nor are my eyes haughty; I busy not myself with great things or with things too sublime for me.” This song you will truly be able to offer to God when you humiliate yourself and praise him alone, to whom truly with all the faithful you may every day say, “To you we owe a hymn of praise,” glorifying him alone.

[AD 651] Braulio of Zaragoza on Psalms 131:1-2
Nor can I think otherwise against the authority of so great a man, but I can only follow his steps and, in Christian humility, not deviate from the paths of our ancestors; as David says, “Neither have I walked with great things or with things too sublime for me.” He is raised up above himself who departs from the traces of his elders and tries to have vision in things that are beyond his powers. Hence, it follows, “If I was not humbly minded, but exalted my soul: as a child that is weaned is towards his mother, so will you reward my soul.” And so it is useful for us to think humble thoughts, in the words of the apostle: “Not setting your mind on high things but condescending to the lowly”;23 and to receive weaning with Isaac, that we may share stronger food rather than with Ishmael, son of the slave girl, to carry a bottle with water instead of wine and to be driven from the eternal inheritance.

[AD 367] Hilary of Poitiers on Psalms 131:2
Then he goes on: Like a weaned child upon his mother's breast, so will you reward my soul. We are told that when Isaac was weaned Abraham made a feast because now that he was weaned he was on the verge of boyhood and was passing beyond milk food. The Apostle feeds all that are imperfect in the faith and still babes in the things of God with the milk of knowledge. Thus to cease to need milk marks the greatest possible advance. Abraham proclaimed by a joyful feast that his son had come to stronger meat, and the Apostle refuses bread to the carnal-minded and those that are babes in Christ. And so the Prophet prays that God, because he has not lifted up his heart, nor walked amid things great and wonderful that are above him, because he has not been humble-minded but did lift up his soul, may reward his soul, lying like a weaned child upon his mother: that is to say that he may be deemed worthy of the reward of the perfect, heavenly and living bread, on the ground that by reason of his works already recorded he has now passed beyond the stage of milk.
[AD 430] Augustine of Hippo on Psalms 131:2
"If I had not lowly thoughts, but have lifted up my soul, as one taken from his mother's breast, such the reward for my soul" [Psalm 131:2]. He seems as it were to have bound himself by a curse:...as though he had been going to say, Let it so happen to me. "As one taken away from his mother's breast, may be my soul's reward." You know that the Apostle says to some weak brethren, "I have fed you with milk, and not with meat; for hitherto you were not able to bear it, neither yet now are you able." [1 Corinthians 3:2] There are weak persons who are not fit for strong meat; they wish to grasp at that which they cannot receive: and if they ever do receive, or seem to themselves to receive what they have not received, they are puffed up thereby, and become proud thereupon; they seem to themselves wise men. Now this happens to all heretics; who since they were animal and carnal, by defending their depraved opinions, which they could not see to be false, were shut out of the Catholic Church....

[AD 367] Hilary of Poitiers on Psalms 131:3
But he does not demand this living bread from heaven for himself alone, he encourages all mankind to hope for it by saying: Let Israel hope in the Lord from henceforth and for evermore. He sets no temporal limit to our hope, he bids our faithful expectation stretch out into infinity. We are to hope for ever and ever, winning the hope of future life through the hope of our present life which we have in Christ Jesus our Lord, Who is blessed for ever and ever. Amen.
[AD 430] Augustine of Hippo on Psalms 131:3
This Psalm therefore concludes to this purpose: "O Israel, trust in the Lord, from this time forth and even unto eternity" [Psalm 131:3]. But the word seculum does not always mean this world, but sometimes eternity; since eternity is understood in two ways; until eternity, that is, either evermore without end, or until we arrive at eternity. How then is it to be understood here? Until we arrive at eternity, let us trust in the Lord God; because when we have reached eternity, there will be no longer hope, but the thing itself will be ours.