The pre-incarnate Jesus is the unique Son of Elohim before He incarnated (entered the Body, The Father prepared for Him — Hebrews 10:5 — as The Lord Jesus Christ. Jesus pre-existed, He is divine and eternal — equally God with The Father and The Holy Spirit.
SCRIPTURAL EVIDENCE:
John 1: Jesus is identified with the Logos, or "Word", who pre-existed in THE BEGINNING.
John 17:5: Jesus Himself refers to his glory with the Father in eternity for Genesis 1.
John 8:58–59: Jesus said that He existed before Abraham's birth— He basically said He was “I AM”.
Romans 8:3, 1 John 1:2, Galatians 4:4: Jesus is presented as pre-existing with the Father as part of the Trinity (three Persons— One Substance).
John 1:2–3, Colossians 1:16–17, Hebrews 1:2: Jesus is the Creator.