John Gill Commentary Luke 22:59

"And after the space of about one hour another confidently affirmed, saying, Of a truth this man also was with him; for he is a Galilaean." — Luke 22:59 (ASV)

And about the space of one hour after. After the first assault, or rather after the second: another confidently affirmed;

who was one of them that stood by the fireside, and heard what had passed; and not only so, but was a kinsman to him, whose ear Peter had cut off, and who had seen him in the garden with Christ, and therefore with all assurance asserted it, as a matter of fact, as an unquestionable truth, and beyond all doubt:

saying of a truth, this fellow also was with him;

a disciple and follower of Jesus, and was with him when he was apprehended; I saw him there, and it may be depended on as a truth; and then added this reason, for he is a Galilean;

you may be assured of this yourselves, his speech betrays him; you may know him by his language, and which confirms my assertion.