John 18:3 - Matthew Poole's English Annotations on the Holy Bible

The evangelist here passeth over all mentioned by the other evangelists about Judas's going to the high priests, and contracting with them, and cometh to relate his coming to apprehend him with a band of men that he had obtained from the chief priests and Pharisees for that purpose. By band we must not understand a Roman cohort, as the word signifies, but such a convenient number out of that band (probably) which at the time of the passover guarded the temple, as was sufficient to take him: they came with lanterns and torches, (though it were the time of full moon), to make the strictest search; and with weapons, fearing where no fear was; for Judas (their leader) could have told them that he was not wont to go with any great company to the mount of Olives.