Matthew 26:34

Jesus said to him, Truly I say to thee, that in this night, before a cock sounds, thou will deny me thrice.

John 13:38

Jesus answered him, Will thou lay down thy life for me? Truly, truly, I say to thee, A cock will, no, not sound, until thou will deny me thrice.

Matthew 26:75

And Peter remembered the saying that Jesus said to him, Before a cock sounds, thou will deny me thrice. And having gone outside, he wept bitterly.

Luke 22:34

And he said, I say to thee, Peter, a cock will, no, not sound today, before thou will thrice deny that thou know me.

Mark 14:30-31

And Jesus says to him, Truly I say to thee, that thou today, in this night, before a cock sounds twice, will deny me thrice.

Treasury of Scripture Knowledge

Summary

Jesus said unto him, Verily I say unto thee, That this night, before the cock crow, thou shalt deny me thrice.

Bible References

That

Mark 14:30
And Jesus says to him, Truly I say to thee, that thou today, in this night, before a cock sounds twice, will deny me thrice.
Luke 22:34
And he said, I say to thee, Peter, a cock will, no, not sound today, before thou will thrice deny that thou know me.
John 13:38
Jesus answered him, Will thou lay down thy life for me? Truly, truly, I say to thee, A cock will, no, not sound, until thou will deny me thrice.

General references

Proverbs 16:18
Pride [is] before destruction, and a haughty spirit before a fall.
Matthew 26:70
But he denied before them all, saying, I do not know what thou say.
1 Corinthians 10:12
Therefore let him who seems to stand take heed lest he fall.