Luke 22:59

about an hour after another confidently affirm'd, saying, this fellow was certainly with him; for he too is a Galilean.

Matthew 26:73-74

soon after they that stood by coming up, said to Peter, certainly you are one of them, for thy speech bewrays thee.

Mark 14:69-70

the maid saw him a second time, and said to the standers-by, this is one of them:

John 18:26-27

one of the servants of the high priest, kinsman to him whose ear Peter struck off, said, 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
soon after they that stood by coming up, said to Peter, certainly you are one of them, for thy speech bewrays thee.
Mark 14:69
the maid saw him a second time, and said to the standers-by, this is one of them:
John 18:26
one of the servants of the high priest, kinsman to him whose ear Peter struck off, said, did not I see thee in the garden with him?