'Fellow travellers' in the Bible

His fellow-travellers stood speechless, for they heard the voice but they could not see anyone.

and the whole city was filled with confusion, they rushed also with one accord into the theatre, having caught Gaius and Aristarchus, Macedonians, Paul's fellow-travellers.

when at mid-day on the road, O king, I saw a light from heaven, more dazzling than the sun, flash round me and my fellow-travellers.