Leo the Great
Catena Aurea · Matthäusevangelium 26
And he went a little farther, and fell on his face, and prayed, saying, O my Father, if it be possible, let this cup pass from me: nevertheless not as I will, but as thou wilt. And he cometh unto the disciples, and findeth them asleep, and saith unto Peter, What, could ye not watch with me one hour? Watch and pray, that ye enter not into temptation: the spirit indeed is willing, but the flesh is weak. He went away again the second time, and prayed, saying, O my Father, if this cup may not pass away from me, except I drink it, thy will be done. And he came and found them asleep again: for their eyes were heavy. And he left them, and went away again, and prayed the third time, saying the same words.
(Serm. 58, 5.) This speech of the Head is the health of the whole body, this saying is instruction to the faithful, animates the confessor, crowns the martyr. For who could vanquish the hatred of the world, or the whirlwind of temptations, or the terrors of the persecutors, if Christ did not in all and for all say to the Father, Thy will be done. Let all the sons of the Church then utter this prayer, that when the pressure of some mighty temptation lies upon them, they may embrace endurance of the suffering, disregarding its terrors.