John Lightfoot on John 19:22

[What I have written I have written.] this was a common way of speaking amongst the Rabbins. "A widow if she take" [or occupy] "the moveables" of her husband deceased for her own maintenance, What she takes she takes; i.e. that which she hath done stands good, and the moveables go to her.

"If any one shall say, I bind myself to offer an oblation out of the frying pan, and offers indeed something from a gridiron, and so on the contrary; that which he hath offered he hath offered." That is (and indeed it is frequently used amongst them), that which is done is done, and cannot be recalled.

"If the putting off the shoe of the husband's brother be before the spitting in his face, or the spitting in his face before the putting off the shoe, that which is done is done," and it stands good.

Pilate doth almost act the prophet as well as Caiaphas. What I have written [Jesus of Nazareth, the King of the Jews] I have written, and it shall stand and obtain; nor shall they have any other king Messiah than this for ever.