Clement of Alexandria Stromata Book I And to prove that this is true, it is written in the Gospel by Luke as follows: "And in the fifteenth year, in the reign of Tiberius Caesar, the word of the Lord came to John, the son of Zacharias." And again in the same book: "And Jesus was coming to His baptism, being about thirty years old,"[292] Tertullian Against Marcion Book IV In the fifteenth year of the reign of Tiberius[155] Five Books in Reply to Marcion 115 Came suddenly to earth,[14]