John 18:8
“He answered, I told you that I Am.” (“And Judas also which betrayed Him stood with them.”)
See the forbearance of the Evangelist, how he does not insult over the traitor, but relates what took place, only desiring to prove one thing, that the whole took place with His own consent. Then, lest any one should say that He Himself brought them to this, by having placed Himself into their hands, and revealed Himself to them; after having shown to them all things which should have been sufficient to repulse them, when they persevered in their wickedness, and had no excuse, He put Himself in their hands, saying,
“If therefore ye seek Me, let these go their way.”
Manifesting until the last hour His lovingkindness towards them. “If,” He says, “ye want Me, have nothing to do with these, for, behold, I give Myself up.”
Source: Homilies on the Gospel of John (New Advent)