Acts 3:17

"Now this indeed, that you put to death the innocent, ye knew: but that you were killing 'the Prince of Life,' this, belike, ye did not know." And he exculpated not them alone, but also the chief contrivers of the evil, "ye and your rulers:" for doubtless it would have roused their opposition, had he gone off into accusation. For the evil-doer, when you accuse him of some wickedness that he has done, in his endeavor to exonerate himself, grows more vehement. And he no longer says, "Ye crucified," "Ye killed," but, "Ye did it;" leading them to seek for pardon.

There is one extenuating circumstance: they did it in ignorance. This fact forms the transition-point to the presentation of a different side of the death of Jesus. It was their crime, but it was also God's plan. They did it from motives of blindness and hate, but God designed it for their salvation. So that Peter, in effect, says: There is hope for you although you have slain the Lord, for his sacrificial death is the ground of salvation. To this view of the death of Christ he now appeals as basis of hope and a motive to repentance.

And it were the exercise of no ordinary arbitrariness, for those who had departed before the advent of the Lord (not having the Gospel preached to them, and having afforded no ground from themselves, in consequence of believing or not) to obtain either salvation or punishment. For it is not right that these should be condemned without trial, and that those alone who lived after the advent should have the advantage of the divine righteousness.

Since Peter had strongly rebuked the Jews, he again softens his speech to give them the opportunity to come to their senses; and in their defense he deigned to put forward two circumstances: one — their ignorance, the other — that everything he said had …

That which bears him out in it is that he has the example of his Master's praying for his crucifiers, and pleading in their behalf that they knew not what they did. And it is said of the rulers that if they had known they would not have crucified the Lord of glory.

As did also your rulers - The prejudice lying from the authority of the chief priests and elders, he here removes, but with great tenderness. He does not call them our, but your rulers. For as the Jewish dispensation ceased at the death of Christ, consequently so did the authority of its rulers.

And now, brethren,.... He calls them brethren, because they were so according to the flesh; and to testify his cordial love and affection for them. I wot, or "I know", that through ignorance ye did it; delivered up Jesus into the hands of Pilate; denied him to be the Messiah before him; preferred a murderer to him, and put him to death.

And now, brethren--Our preacher, like his Master, "will not break the bruised reed." His heaviest charges are prompted by love, which now hastens to assuage the wounds it was necessary to inflict.

I wot - Οιδα, I know. Wot is from the Anglo-Saxon, to know; and hence wit, science or understanding. Through ignorance ye did it - This is a very tender excuse for them; and one which seems to be necessary, in order to show them that their state was not utterly desperate; for if all that they did to Christ had been through absolute malice, (they well knowing who he was), if any sin could be supposed to be unpardonable, it must have been theirs. Peter, foreseeing that they might be tempted thus to think, and consequently to despair of salvation, tells them that their offense was extenuated by their ignorance of the person they had tormented and crucified. And one must suppose that, had they been fully convinced that this Jesus was the only Messiah, they never would have crucified him; but they did not permit themselves to receive conviction on the subject.