Perhaps the reader doth not know, or recollect, that this name was used by all the Roman Emperors, whatever their other name might be. Thus Tiberius was the Emperor in the days of our Lord. (See Luke 3:1) But our Lord only called him Caesar. (See Matthew 22:21) And Paul the apostle, when compelled to appeal against the injustice of Festus, said, I appeal unto Caesar; whereas, Nero was at that time the Emperor. (See Acts 25:10-11)