Mark 14:68
But he denied, saying, I know him 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 those that were there, This fellow was also with Jesus of Nazareth.
Mark 14:29-31
Then Peter said unto him, Although all be scandalized, yet I will not.
Mark 14:72
And the second time the cock crew. And Peter called to mind the words that Jesus had said unto him, Before the cock crows twice, thou shalt deny me three times. And thinking on this, he wept.
John 13:36-38
Simon Peter said unto him, Lord, where goest thou? Jesus answered him, Where 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;