Then going out he went, as was his custom, to the Mount of Olives, and the disciples followed him.

When he arrived at the place he said to them, "Pray that you may not undergo the test." After withdrawing about a stone's throw from them and kneeling, he prayed, saying, "Father, if you are willing, take this cup away from me; still, not my will but yours be done."

And to strengthen him, an angel from heaven appeared to him. He was in such agony, and he prayed so fervently, that his sweat became like drops of blood falling on the ground. When he rose from prayer and returned to his disciples, he found them sleeping from grief. He said to them, "Why are you sleeping? Get up and pray that you may not undergo the test."

(Luke 22, 39-46)