And this is life eternal, that they might know thee the (b) only true God, and Jesus Christ, whom thou hast sent.
(b) He calls the Father the only true God in order to set him against all false gods, and to include himself and the Holy Spirit, for he immediately joins the knowledge of the Father and the knowledge of himself together, and according to his accustomed manner sets forth the whole Godhead in the person of the Father. So is the Father alone said to be King, immortal, wise, dwelling in light which no man can attain unto, and invisible; (Romans 16:27; 1 Timothy 1:17).