Luke 22:59

Another hour passed. Someone else said: It is true this man was with him for he is a Galilean.

Matthew 26:73-74

A few moments later, those who were near approached and said to Peter: Indeed, you are one of them, because the way you speak gives you away.

Mark 14:69-70

The servant woman saw him there and told bystanders, He is one of them!

John 18:26-27

One of the servants of the high priest, being a relative of him whose ear Peter cut off, said: Did 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
A few moments later, those who were near approached and said to Peter: Indeed, you are one of them, because the way you speak gives you away.
Mark 14:69
The servant woman saw him there and told bystanders, He is one of them!
John 18:26
One of the servants of the high priest, being a relative of him whose ear Peter cut off, said: Did I see you in the garden with him?