John Chrysostom
“God exalted Him,” he says, “at His right hand.” By this he indicates not only the Resurrection, but also the exaltation, that is, the Ascension.
“To give repentance to Israel.” Next the apostles wish to show the murderous intentions of the Jews, who were acting here not for justice, but from a desire to avenge themselves.
Therefore they do not answer them sharply, for they were teachers. Another man, having drawn the whole city to his side and received such grace, what would he not have said? How much would he not have displayed?
But the apostles are not like this. They were not angry, but grieved and wept over them. Their aim was to turn them away from error and fury.
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They do not even say to them, “Judge for yourselves” (Acts 4:19). Instead they say: “God exalted Him,” expressing by this that all these things happen according to the will of God.
They did not say: did we not tell you before, “We cannot but speak of what we have seen and heard” (Acts 4:20)? They are not vainglorious.
Again they speak of the same thing, of the Cross and the Resurrection. Yet they do not say why Christ was crucified, that is, that He was crucified for us.
They only hint at this, and not yet clearly, wishing to awaken fear in them. Tell me, is there any artificial eloquence here? None at all.
Thus, without preparation, they proclaimed the gospel of life. Having said “exalted,” Peter also speaks of the purpose for which this was done. “To give repentance to Israel,” he adds, “and forgiveness of sins.”
But they will say: this still seemed incredible. What are you saying? How is that incredible which neither the rulers nor the people could contradict?
By it the mouths of the former were stopped, and the latter received edification. Look at what Peter says: “God exalted Him at His right hand as Prince and Savior, to give repentance to Israel and forgiveness of sins.”
Here he is silent about the Gentiles, so as not to give them a pretext for killing him.