Saying, I have sinned,.... Here was a confession, and yet no true repentance; for he confessed, but not to the right persons; not to God, nor Christ, but to the chief priests and elders; nor over the head of the antitypical scape goat, not seeking to Christ for pardon and cleansing, nor did he confess and forsake sin, but went on adding sin to sin, and so found no mercy.
The same confession was made by a like hardened wretch, Pharaoh, Ex 9:27. He proceeds and points out the evil he had committed:in that I have betrayed innocent blood, or "righteous blood"; so the Vulgate Latin, and Syriac versions, and Munster's Hebrew Gospel read, and some copies; that is, have betrayed an innocent and righteous person, and been the occasion of his blood being about to be shed, and of his dying wrongfully.
So God, in his all-wise providence, ordered it, that a testimony should be bore to the innocence of Christ, from the mouth of this vile wretch that betrayed him; to cut off the argument from the Jews, that one of his own disciples knew him to be a wicked man, and as such delivered him into their hands: for though Judas might not believe in him as the Messiah, and the Son of God, at least had no true faith in him, as such; yet he knew, and believed in his own conscience, that he was a good man, and a righteous and innocent one: and what he here says is a testimony of Christ's innocence, and what his conscience obliged him to; and shows the terrors that now encompassed him about; and might have been a warning to the Jews to have stopped all further proceedings against him; but instead of that,they said, what is that to us?