Matthew 15:22-28
And behold, a woman of Chanaan came out from those borders, and cried to him, saying: Have mercy on me, Lord, son of David; my daughter is grievously vexed with a demon.
Matthew 26:41
Watch and pray, lest you enter into temptation. The spirit is, willing, but the flesh is weak.
Matthew 26:44
And he left them, and went away again, and prayed the third time, saying the same thing.
Luke 11:5-8
And he said to them: Which of you shall have a friend, and shall go to him at midnight, and say to him, Friend, lend me three loaves;
2 Corinthians 12:7-9
And, lest I should be too much exalted by the excellence of the revelations, there was given to me a thorn in the flesh, a messenger of Satan to buffet me, that I might not be too much exalted.