12 And when Peter saw it he said to the people, You men of Israel, why are you so greatly surprised at this man? or why are you looking at us as if by our power or virtue we had given him the use of his legs? 13 The God of Abraham, of Isaac, and of Jacob, the God of our fathers, has given glory to his servant Jesus; whom you gave up, turning your backs on him, when Pilate had made the decision to let him go free. 14 But you would have nothing to do with the Holy and Upright One, and made request for a man of blood to be given to you, 15 And put to death the Lord of life; whom God gave back from the dead; of which fact we are witnesses. 16 And his name, through faith in his name, has made this man strong, whom you see and have knowledge of: yes, the faith which is through him has made him well, before you all. 17 And now, my brothers, I am conscious that you did this, as did your rulers, without knowledge. 18 But the things which God had made clear before, by the mouth of all the prophets, that the Christ would have to undergo, he has put into effect in this way. 19 So then, let your hearts be changed and be turned to God, so that your sins may be completely taken away, and times of blessing may come from the Lord; 20 And that he may send the Christ who was marked out for you from the first, even Jesus: 21 Who is to be kept in heaven till the time when all things are put right, of which God has given word by the mouth of his holy prophets, who have been from the earliest times. 22 For Moses said, The Lord will give you a prophet from among your people, like me; you will give ear to everything which he will say to you. 23 And every soul who does not give attention to that prophet, will be cut off from among the people. 24 And all the prophets from Samuel and those who came after, every one of them, gave word of these days. 25 You are the sons of the prophets, and of the agreement which God made with your fathers, saying to Abraham, Through your seed a blessing will come on all the families of the earth. 26 To you, first, God sent his servant, blessing you by turning every one of you from his sins.

Matthew Henry's Commentary on Acts 3:12-26

Commentary on Acts 3:12-18

(Read Acts 3:12-18)

Observe the difference in the manner of working the miracles. Our Lord always spoke as having Almighty power, never hesitated to receive the greatest honour that was given to him on account of his Divine miracles. But the apostles referred all to their Lord, and refused to receive any honour, except as his undeserving instruments. This shows that Jesus was one with the Father, and co-equal with Him; while the apostles knew that they were weak, sinful men, and dependent for every thing on Jesus, whose power effected the cure. Useful men must be very humble. Not unto us, O Lord, not unto us, but to thy name, give glory. Every crown must be cast at the feet of Christ. The apostle showed the Jews the greatness of their crime, but would not anger or drive them to despair. Assuredly, those who reject, refuse, or deny Christ, do it through ignorance; but this can in no case be an excuse.

Commentary on Acts 3:19-21

(Read Acts 3:19-21)

The absolute necessity of repentance is to be solemnly charged upon the consciences of all who desire that their sins may be blotted out, and that they may share in the refreshment which nothing but a sense of Christ's pardoning love can afford. Blessed are those who have felt this. It was not needful for the Holy Spirit to make known the times and seasons of these dispensations. These subjects are still left obscure. But when sinners are convinced of their sins, they will cry to the Lord for pardon; and to the penitent, converted, and believing, times of refreshment will come from the presence of the Lord. In a state of trial and probation, the glorified Redeemer will be out of sight, because we must live by faith in him.

Commentary on Acts 3:22-26

(Read Acts 3:22-26)

Here is a powerful address to warn the Jews of the dreadful consequences of their unbelief, in the very words of Moses, their favourite prophet, out of pretended zeal for whom they were ready to reject Christianity, and to try to destroy it. Christ came into the world to bring a blessing with him. And he sent his Spirit to be the great blessing. Christ came to bless us, by turning us from our iniquities, and saving us from our sins. We, by nature cleave to sin; the design of Divine grace is to turn us from it, that we may not only forsake, but hate it. Let none think that they can be happy by continuing in sin, when God declares that the blessing is in being turned from all iniquity. Let none think that they understand or believe the gospel, who only seek deliverance from the punishment of sin, but do not expect happiness in being delivered from sin itself. And let none expect to be turned from their sin, except by believing in, and receiving Christ the Son of God, as their wisdom, righteousness, sanctification, and redemption.