And this is life eternal, that they might know Thee the only true God, and Jesus Christ, whom thou hast sent
John 17:3
One does not need to be a doctor of divinity to construe our point! The archaic pronoun "THEE", as use in the text, alludes directly and distinctly to the father; no Trinitarian would deny this.
That being the case, if we substitute subject "Father" for the pronoun "THEE" we get:
"And this is life eternal, that they might know FATHER the only true God, and Jesus Christ, whom thou hast sent"