Mark 14:68
And he denied, saying, I know not, neither understand what thou sayest. And he went forth without into the vestibule; and the cock uttered a sound.
Matthew 26:71-72
And he having gone out into the gate, another saw him, and she says to them there, This also was with Jesus the Nazarite.
Mark 14:29-31
And Peter said to him, And if all shall be offended, yet not I.
Mark 14:72
And of the second time the cock uttered a sound. And Peter remembered the word which Jesus spake to him, That before the cock utter a sound twice, thou shalt deny me thrice. And throwing blame, he wept.
John 13:36-38
Simon Peter says to him, Lord, where retirest thou? Jesus answered him, Where I retire, thou shalt not be able to follow me now; and afterwards thou shalt follow me.
2 Timothy 2:12-13
If we endure, we shall also reign together: if we deny, he will also deny us: