Luke 22:59

And Peter said, Man, I am not. And about one hour after, another confidently affirmed, saying, Of a truth this fellow also was with him, for he is a Galilean.

Matthew 26:73-74

And after a while they that stood by, came and said to Peter, Surely thou art also one of them; for thy speech discovereth thee.

Mark 14:69-70

And the maid saw him again, and said to them that stood by, This is one of them.

John 18:26-27

One of the servants of the high priest (being kinsman to him whose ear Peter had cut off) saith, Did not I see thee 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 while they that stood by, came and said to Peter, Surely thou art also one of them; for thy speech discovereth thee.
Mark 14:69
And the maid saw him again, and said to them that stood by, This is one of them.
John 18:26
One of the servants of the high priest (being kinsman to him whose ear Peter had cut off) saith, Did not I see thee in the garden with him?