John the Apostle
John 18:21BSB·traditional attribution

Why are you asking Me? Ask those who heard My message. Surely they know what I said.”

Matthew Henry Presbyterian @wholebiblehenry

We have here an account of Christ's arraignment before the high priest, and some circumstances that occurred therein which were omitted by the other evangelists; and Peter's denying him, which the other evangelists had given the story of entire by itself, is interwoven with the other passages.

Commenting on John 18:13-27

John Gill Reformed Baptist @doctorgill

Why askest thou me?.... He seems surprised at the high priest's conduct, that he should put such questions to him, who stood bound before him; was brought there as a criminal, and was the defendant, and not obliged to accuse himself; nor could it be thought, that whatever evidence or testimony he should give, would have much weight with the persons before whom he stood.

Albert Barnes Presbyterian @notesbybarnes

Verse 21. Why askest thou me? Ask them, &c. Jesus here insisted on his rights, and reproves the high-priest for his unjust and illegal manner of extorting a confession from him. If he had done wrong, or taught erroneous and seditious doctrines, it was easy to prove it, and the course which he had a right to demand was that they should establish the charge by fair and incontrovertible evidence.