Int. Standard Bible Encyclopedia SADDUK sad'-uk (Codex Alexandrinus (Fritzsche), Saddoukos; Codex Vaticanus Saddouloukos; the King James Version Sadduc): The high priest, an ancestor of Ezra (1 Esdras 8:2) = "Zadok" in Ezra 7:2 = "Sadoc" in 2 Esdras 1:1.