Luke 22:43-46

Then an angel from heaven appeared and strengthened him. He prayed more fervently, and he was in such agony of spirit that his sweat fell to the ground like great drops of blood. At last he stood up again and returned to the disciples, only to find them asleep, exhausted from grief. “Why are you sleeping?” he asked them. “Get up and pray, so that you will not give in to temptation.”