Mark 14:68
But he denied, saying, I know not, neither understand I what thou sayest. And he went out into the porch; and the cock crew.
Matthew 26:71-72
And when he was gone out into the porch, another maid saw him, and said unto them that were there, This fellow was also with Jesus of Nazareth.
Mark 14:29-31
But Peter said unto him, Although all shall be offended, yet will not I.
Mark 14:72
And the second time the cock crew. And Peter called to mind the word that Jesus said unto him, Before the cock crow twice, thou shalt deny me thrice. And when he thought thereon, he wept.
John 13:36-38
Simon Peter said unto him, Lord, whither goest thou? Jesus answered him, Whither I go, thou canst not follow me now; but thou shalt follow me afterwards.
2 Timothy 2:12-13
If we suffer, we shall also reign with him: if we deny him, he also will deny us: