Matthew 26:70-74

But Peter denied it in front of everyone. “I don’t know what you’re talking about,” he said. Later, out by the gate, another servant girl noticed him and said to those standing around, “This man was with Jesus of Nazareth.” Again Peter denied it, this time with an oath. “I don’t even know the man,” he said. A little later some of the other bystanders came over to Peter and said, “You must be one of them; we can tell by your Galilean accent.” Peter swore, “A curse on me if I’m lying—I don’t know the man!” And immediately the rooster crowed.