The Passover affords a more than usually solemn day for baptism; when, withal, the Lord's passion, in which we are baptized, was completed. Nor will it be incongruous to interpret figuratively the fact that, when the Lord was about to celebrate the last Passover, He said to the disciples who were sent to make preparation, "You will meet a man bearing water." He points out the place for celebrating the Passover by the sign of water. After that, Pentecost is a most joyous space for conferring baptisms; wherein, too, the resurrection of the Lord was repeatedly proved among the disciples [Acts 1:3], and the hope of the advent of the Lord indirectly pointed to, in that, at that time, when He had been received back into the heavens [Acts 1:9], the angels told the apostles that "He would so come, as He had withal ascended into the heavens;" [Acts 1:11] at Pentecost, of course. But, moreover, when Jeremiah says, "And I will gather them together from the extremities of the land in the feast-day," he signifies the day of the Passover and of Pentecost, which is properly a "feast-day." However, every day is the Lord's; every hour, every time, is apt for baptism: if there is a difference in the solemnity, distinction there is none in the grace.
For they longed for it now, they wished it now; that is, they wished to seize Him, and to make Him king.
But the prophets foretold His kingdom according to that wherein He is Christ made man, and has made His faithful ones Christians. There will consequently be a kingdom of Christians, which at present is being gathered together, being prepared and purchased by the blood of Christ. His kingdom will at length be made manifest, when the glory of His saints shall be revealed, after the judgment is executed by Him, which judgment He Himself has said above is that which the Son of man shall execute. Of which kingdom also the apostle has said: “When He shall have delivered up the kingdom to God, even the Father.(1 Cor 15:24)”
The Son is not lacking in the knowledge of anything that the Father knows, and the Son is not ignorant, because the Father alone knows, since the Father and the Son remain in the unity of the nature. What the Son, in whom all the treasures of wisdom and knowledge are hidden, does not know is in harmony with the divine plan for maintaining silence. The Lord bore testimony to this when he replied to the apostles who had questioned him about the times, “It is not for you to know the times or dates which the Father has fixed by his own authority.”The knowledge is denied them. Not only is it denied, but they are forbidden to be anxious about the knowledge, since it is not for them to know these times. Naturally, after the resurrection, they now interrogate him about the times, since they had been informed previously when they broached the question, that not even the Son knows, and they could not believe that the Son did not know in the literal meaning of the term, because they again question him as one who does not know. Since they are aware that the mystery of not knowing is according to the divine plan for maintaining silence, they conclude that now, after the resurrection, the time for speaking has at length arrived, and they bring forth their questions.
And the Son does not tell them that he does not know but that it is not for them to know, because the Father has settled this matter by his own authority. Consequently, if the apostles realize that this statement, that the Son does not know, is in keeping with the plan of salvation and is not a weakness, shall we assert that the Son, therefore, does not know the day because he is not God? God the Father has determined it by his own authority, therefore, in order that it may not come to the knowledge of our human comprehension, and the Son, when previously interrogated, had said that he did not know and now he does not make the same reply that he does not know, but that it is not for them to know, and that the Father, however, has decided upon these times not in his knowledge but in his authority. Since the day and moment are included in the idea of time, it is impossible to believe that the day and moment for restoring the kingdom of Israel is unknown to him who is to restore it. But, to lead us to the knowledge of his birth through the Father’s unique power, he answered that it was known to him and, while revealing that the right to acquire this knowledge had not been conferred on them, he declared that this knowledge itself is dependent upon the mystery of the Father’s authority.
“It is not for you to know times or seasons.” He has hidden that from us so that we might keep watch and that each of us might think that this coming would take place during our life. For, if the time of his coming were to be revealed, his coming would be in vain, and it would not have been desired by the nations and the ages in which it was to take place. He has indeed said that he will come, but he did not define when, and thus all generations and ages thirst for him.
That is to say, the knowledge of such a kingdom is not for them that are bound in flesh and blood. This contemplation the Father has put away in his own power, meaning by “power” those that are authorized, and by “his own” those who are not held down by the ignorance of things below.
But neither is the Father deceived nor does the Son deceive. It is the custom of the holy Scriptures to speak thus, as the examples I have already given, and many others testify, so that God feigns not to know what he does know. In this then a unity of Godhead and a unity of character is proved to exist in the Father and in the Son; seeing that, as God the Father hides what is known to him, so also the Son, who is the image of God in this respect, hides what is known to him.
When the disciples intend to ask anything, they approach Him together, that by dint of numbers they may abash Him into compliance. They well knew that in what He had said previously, "Of that day knoweth no man" (Matt. xxiv. 36), He had merely declined telling them: therefore they again drew near, and put the question. They would not have put it had they been truly satisfied with that answer. For having heard that they were about to receive the Holy Ghost, they, as being now worthy of instruction, desired to learn. Also they were quite ready for freedom: for they had no mind to address themselves to danger; what they wished was to breathe freely again; for they were no light matters that had happened to them, but the utmost peril had impended over them. And without saying anything to Him of the Holy Ghost, they put this question: "Lord, wilt Thou at this time restore the kingdom to Israel?" They did not ask, when? but whether "at this time." So eager were they for that day. Indeed, to me it appears that they had not any clear notion of the nature of that kingdom; for the Spirit had not yet instructed them. And they do not say, When shall these things be? but they approach Him with greater honour, saying, "Wilt Thou at this time restore again the kingdom," as being now already fallen. For there they were still affected towards sensible objects, seeing they were not yet become better than those who were before them; here they have henceforth high conceptions concerning Christ.
And this he says, because he was very careful to honor them and to conceal nothing from them. Therefore he refers it to his Father, both to make the matter awesome and to dispel further inquiry on what was said. If this were not the reason, but he is ignorant, when will he know? Will he only know at the same time we do? Who would say this? He knows the Father clearly, just as the Father knows the Son. Is he then ignorant of the day? Furthermore, “the Spirit searches everything, even the depth of God.” But are we to say that he does not even know the time of the judgment? But he knows how he must judge, and he understands the secrets of each. Was he to be ignorant of this, which is much more general? And, if “all things came into being through him, and without him not one thing came into being,” how was he ignorant of the day? For he who made the ages clearly made the times also, and if the times, then also the day. How, then, is he ignorant of what he made?
"Wilt Thou at this time," say they, "restore the kingdom to Israel?" They so well knew his mildness, that after His Passion also they ask Him, "Wilt thou restore?" And yet He had before said to them, "Ye shall hear of wars and rumors of wars, but the end is not yet," nor shall Jerusalem be taken. But now they ask Him about the kingdom, not about the end. And besides, He does not speak at great length with them after the Resurrection. They address then this question, as thinking that they themselves would be in high honor, if this should come to pass. But He (for as touching this restoration, that it was not to be, He did not openly declare; for what needed they to learn this? hence they do not again ask, "What is the sign of Thy coming, and of the end of the world?" for they are afraid to say that: but, "Wilt Thou restore the kingdom to Israel?" for they thought there was such a kingdom), but He, I say, both in parables had shown that the time was not near, and here where they asked, and He answered thereto.
But just as when we see a child crying, and pertinaciously wishing to get something from us that is not expedient for him, we hide the thing, and show him our empty hands, and say, "See, we have it not:" the like has Christ here done with the Apostles. The disciples asked to have something, and He said He had it not. And on the first occasion he frightened them. Then again they asked to have it now: He said He had it not; and He did not frighten them now, but after having shown the empty hands, He has done this, and gives them a plausible reason: "Which the Father," He says, "hath put in his own power." What? Thou not know the things of the Father! Thou knowest Him, and not what belongs to Him! And yet Thou hast said, "None knoweth the Father but the Son" (Luke x. 25); and, "The Spirit searcheth all things, yea, the deep things of God" (1 Cor. ii. 10); and Thou not know this! But they feared to ask Him again, lest they should hear Him say, "Are ye also without understanding?" (Matt. xv. 26.) For they feared Him now much more than before.
"They therefore who were come together, asked him," etc. He says that the Lord Christ was asked by them who were come together if the restoration of the Israelite kingdom, which he promised was to come, would take place at that time. It is evident that an indication of the precise time was withheld for our greater benefit; but, instead, he foretold them that on the fiftieth day they would receive the power of the Holy Ghost, so that they might bear witness throughout the earth to the wonderful works of perfect faith.
People did not realize what they should not know, and the Son of God was not in any sense unaware of this through weakness of the flesh. But if we were to suspect that the divine Majesty cloaked ignorance (a thing it would be irreverent to say), then that ignorance would be found stronger than the divine nature, and could—to speak foolishness—bring down the providence by which all things were created. But since we are taught that this is quite ridiculous, we must believe that the whole Trinity, whose nature is one and all-powerful, has always an unfailing knowledge of all things.
Therefore, those who had come together asked Him, saying: Lord, will you at this time restore the kingdom to Israel? Since He appeared to them speaking of the kingdom of God, He also promised the coming of the Holy Spirit not many days later, they accordingly inquire about the same kingdom, whether they should believe that it would be restored in the present with the imminent coming of the Holy Spirit, or reserved for the saints in the future. For the disciples, still carnal, after the resurrection of Christ, believed that the kingdom of Israel would come immediately. As Cleopas said: But we were hoping that it was He who was going to redeem Israel. And the evangelist had stated beforehand that as the Lord was coming to Jerusalem, they thought that the kingdom of God would immediately appear. But the prophecy was to be fulfilled, which says, singing to the Father: But you have rejected, despised, and delayed your Christ (Psalm LXXXVIII). For the Father rejected and despised the Son when He deserted Him in His passion, saying: My God, my God, why have you forsaken me (Matthew XXVII)? He delayed, however, that those whom the saints thought would reign at that time, they might expect Him to come in His majesty on the day of judgment. Therefore, the Lord Himself, hinting that the spiritual Israel and the heavenly kingdom were promised by the prophets, said:
Lord, will you at this time restore the kingdom to Israel? Not to this Israel, but to this Israel; and as it is manifest in Greek, where τῷ Israel, and not οῦ Israel, is written. Which would be understood more easily if, by adding one word, it were said: Lord, will you at this time restore the kingdom to the people of Israel.
[AD 220] Tertullian on Acts 1:3-11