"If Jesus, however, were part of a Godhead, the ransom price would have been infinitely higher than what God’s own Law required. (Exodus 21:23-25; Leviticus 24:19-21) It was only a perfect human, Adam, who sinned in Eden, not God. So the ransom, to be truly in line with God’s justice, had to be strictly an equivalent—a perfect human, “the last Adam.” Thus, when God sent Jesus to earth as the ransom, he made Jesus to be what would satisfy justice, not an incarnation, not a god-man, but a perfect man, “lower than angels.” (Hebrews 2:9; compare Psalm 8:5, 6.) How could any part of an almighty Godhead—Father, Son, or holy spirit—ever be lower than angels?"
And yet it took that holy nature that is only present in God to perfect the man Jesus, only God could meet the requirements of a perfect (holy) sacrifice and only Jesus, who was fully human could adequately represent the human race as the God/Man. If Jesus were NOT God he could not have been holy, if holiness could be attained without God then someone else could have done so and the incarnation would not have been necessary. The trinity stands.
