Luke 22:60

But Peter said, "Man, I do not know what you are saying!" Immediately, while he was still speaking, the rooster crowed.

Matthew 26:74-75

Then he began to invoke a curse on himself and to swear, "I do not know the man." And immediately the rooster crowed.

Mark 14:71-72

But he began to invoke a curse on himself and to swear, "I do not know this man of whom you speak."

Luke 22:34

He said, "I tell you, Peter, the rooster will not crow this day before you deny three times that you know me."

John 18:27

Peter again denied it; and at once a rooster crowed.

Treasury of Scripture Knowledge

Summary

And Peter said, Man, I know not what thou sayest. And immediately, while he yet spake, the cock crew.

Bible References

The cock

Luke 22:34
He said, "I tell you, Peter, the rooster will not crow this day before you deny three times that you know me."
Matthew 26:74
Then he began to invoke a curse on himself and to swear, "I do not know the man." And immediately the rooster crowed.
Mark 14:71
But he began to invoke a curse on himself and to swear, "I do not know this man of whom you speak."
John 18:27
Peter again denied it; and at once a rooster crowed.