Luke 22:59

After about one hour passed, another confidently affirmed, saying, "Truly this man also was with him, for he is a Galilean!"

Matthew 26:73-74

After a little while those who stood by came and said to Peter, "Surely you are also one of them, for your speech makes you known."

Mark 14:69-70

The maid saw him, and began again to tell those who stood by, "This is one of them."

John 18:26-27

One of the servants of the high priest, being a relative of him whose ear Peter had cut off, said, "Didn't I 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
After a little while those who stood by came and said to Peter, "Surely you are also one of them, for your speech makes you known."
Mark 14:69
The maid saw him, and began again to tell those who stood by, "This is one of them."
John 18:26
One of the servants of the high priest, being a relative of him whose ear Peter had cut off, said, "Didn't I see you in the garden with him?"