Show me a penny,.... A Roman denarius, value seven pence halfpenny of our money. The Persic version adds, "they showed it, he asked of them"; and the Ethiopic version, "and they brought it, and he said unto them", as follows; whose image and superscription hath it? for the penny had an head upon it, with something written, as the name of the emperor, whose image it was, his titles, the date of the coin, or some motto on it: they answered and said, Caesar's; very likely Tiberius Caesar's, who was at that time emperor of Rome; See Gill on Mat 22:20 and See Gill on Mat 22:21.