Matthew 15:22-28
And behold a woman of Canaan, of those coasts, came and cried to him, saying, Have mercy on me, O Lord, thou Son of David: my daughter is grievously vexed with a devil.
Matthew 26:41
Watch and pray, that ye enter not into temptation: the spirit indeed is willing; but the flesh is weak.
Matthew 26:44
And leaving them, he went away again, and prayed the third time, saying the same words.
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 lifted up with the abundance of the revelations, there was given me a thorn in the flesh, a messenger of Satan, to buffet me, lest I should be lifted up.