Luke 22:59

And [after] about one hour had passed, someone else was insisting, saying, "In truth this man also was with him, because he is also a Galilean!"

Matthew 26:73-74

And after a little [while] those who were standing there came up [and] said to Peter, "You really are [one] of them also, because even your accent {reveals who you are}."

Mark 14:69-70

And the female slave, [when she] saw him, began to say again to the bystanders, "This man is one of them!"

John 18:26-27

One of the slaves of the high priest, who was related to the one whose ear Peter had cut off, said, "Did I not see you in the garden with him?"

Treasury of Scripture Knowledge

Summary

And about the space of one hour after another confidently affirmed, saying, Of a truth this fellow also was with him: for he is a Galilaean.

Bible References

Confidently

Matthew 26:73
And after a little [while] those who were standing there came up [and] said to Peter, "You really are [one] of them also, because even your accent {reveals who you are}."
Mark 14:69
And the female slave, [when she] saw him, began to say again to the bystanders, "This man is one of them!"
John 18:26
One of the slaves of the high priest, who was related to the one whose ear Peter had cut off, said, "Did I not see you in the garden with him?"