Charles H. Spurgeon on Psalms 22:1

"My God, my God," etc. There is a tradition that our Lord, hanging on the cross, began, as we know from the gospel, this Psalm; and repeating it and those that follow, gave up his most blessed spirit when he came to the sixth verse of the thirty-first Psalm. However that may be, by taking these first words on his lips, he stamped the Psalm as belonging to himself. Ludolph, the Carthusian (circa.1350), in J. M. Neale's Commentary.