Bible Dictionaries
Caesar

　　a title borne by all the Roman emperors till the destruction of the empire. It took its rise from the surname of the first emperor, Caius Julius Caesar; and this title, by a decree of the senate, all the succeeding emperors were to bear. In Scripture, the reigning emperor is generally mentioned by the name of Caesar, without expressing any other distinction:

　　so in Matthew 22:21 ," Render unto Caesar," &c, Tiberius is meant; and in Acts 25:10 , "I appeal unto Caesar," Nero is intended.