Luke 22:62
And Peter going without, wept bitterly.
Matthew 5:4
Blessed are they that mourn: for they shall be comforted.
Matthew 26:75
And Peter remembered the word of Jesus, who had said unto him, Before the cock shall crow, thou shalt deny me thrice. And going out, he wept bitterly.
Mark 14:72
And the second time the cock crew. And Peter remembered the word which Jesus spake unto him, That before the cock crow twice, thou shalt deny me thrice. And casting his mantle over his face, he wept.
1 Corinthians 10:12
Wherefore let him that thinketh he standeth, take heed lest he fall.
2 Corinthians 7:9-11
Now I rejoice, not that ye have been made sorrowful, but that ye have sorrowed unto repentance; for ye have been made sorry in a godly manner, that ye might receive damage from us in nothing.