“But this, saith He, is life eternal, that they may know Thee [the Father] the only true God, and Jesus Christ, Whom Thou hast sent. The [proper] order of the words is: “That Thee [the Father] and Jesus Christ whom Thou hast sent, they may know to be the only true God.”
(Augustine (1849). The Gospel According to St. John, and His First Epistle, Volume 2 (Henry Browne, trans.). Oxford: John Henry Parker. p. 952)
John 17:3 New International Version (NIV) 3 Now this is eternal life: that they know you, the only true God, and Jesus Christ, whom you have sent.