World Wide Study Bible
a Bible passage
2. Annas and Caiaphas … high priests—the former, though deposed, retained much of his influence, and, probably, as sagan or deputy, exercised much of the power of the high priesthood along with Caiaphas (Joh 18:13; Ac 4:6). Both Zadok and Abiathar acted as high priests in David's time (2Sa 15:35), and it seems to have become the fixed practice to have two (2Ki 25:18). (Also see on Mt 3:1.)
word of God came unto John—Such formulas, of course, are never used when speaking of Jesus, because the divine nature manifested itself in Him not at certain isolated moments of His life. He was the one everlasting manifestation of the Godhead—The Word [Olshausen].