Matthew 26:71-73

71And when he had gone out to the gateway, another servant-girl saw him and she said to the bystanders, “This man was with Jesus the Nazarene.”

72And again he denied it with an oath, “I do not know the man.”

73After a little while the bystanders came up and said to Peter, “Surely you are one of them too; for even your [Galilean] accent gives you away.”