Mark 14:68
But he denied, saying: I neither know, nor understand what you say. And he went out into the entrance, and the cock crew.
Matthew 26:71-72
And when he went out into the entrance, an other maid-servant saw him, and said to those who were there: This man was also with Jesus the Nazarene.
Mark 14:29-31
Peter said to him: Though all should find occasion for offense, yet I will not.
Mark 14:72
And immediately the cock crew the second time. And Peter remembered the word that Jesus had spoken to him: Before the cock crows twice, you will deny me three times. And when he thought upon it, he wept.
John 13:36-38
Simon Peter said to him: Lord, whither goest thou? Jesus answered him: Whither I go, you can not follow me now; but you shall follow me hereafter.
2 Timothy 2:12-13
if we are patient, we shall also reign with him; if we deny him, he will also deny us;