Jesus knew the I AM and " God " as a result.
Jesus said, before Abraham I am --> Meaning = Titus 1:2 - In hope of eternal life, which God (Almighty, not Jesus), that cannot lie, promised before time eternal.
Rev 13:12 - And all that dwell upon the earth shall worship him, whose names are not written in the book of life of the Lamb slain from the foundation of the world.
So before Abraham was even thought of, In the mind and plans of the Almighty God and Father, his inner logos, Just as John 1:1-2 is, inner logos, was a plan of a future one, Jesus as per 2 Sam 7:12-14 and Deu 18:18 = no more and no less, is what Jesus is saying here.
And Jesus now exalted;
John 1:18 - God no one has ever seen yet; only begotten God, the being in the bosom of the Father, He has made him known (While here and when he went to him, Jesus gets to see His God and Father).
Begotten, literally for the first time, Jesus's literal beginning, at Mary and begotten AGAIN after his death where he is NOW exalted to a Begotten God.
