And this is life eternal, that they might know you the only true God, and Jesus Christ, whom you have sent.
All Commentaries on John 17:3 Go To John 17
John Chrysostom
AD 407
The only true God, He says, by way of distinction from those which are not gods; for He was about to send them to the Gentiles. But if they will not allow this, but on account of this word only reject the Son from being true God, in this way as they proceed they reject Him from being God at all. For He also says, You seek not the glory which is from the only God. John 5:44 Well then; shall not the Son be God? But if the Son be God, and the Son of the Father who is called the Only God, it is clear that He also is true, and the Son of Him who is called the Only true God. Why, when Paul says, Or I only and Barnabas 1 Corinthians 9:6, does he exclude Barnabas? Not at all; for the only is put by way of distinction from others. And, if He be not true God, how is He Truth? For truth far surpasses what is true. What shall we call the not being a true man, tell me? Shall we not call it the not being a man at all? So if the Son is not true God, how is He God? And how makes He us gods and sons, if He is not true? But on these matters we have spoken more particularly in another place; wherefore let us apply ourselves to what follows.