I will again state that appealing to OT knowledge is not the issue. According to the NT God did dwell on earth. You as a human being have a "spirit" that according to Solomon came from God.
Ecclesiastes 12:6-8
6 Remember Him before the silver cord is broken and the golden bowl is crushed, the pitcher by the well is shattered and the wheel at the cistern is crushed; 7 then the dust will return to the earth as it was, and the spirit will return to God who gave it. 8 "Vanity of vanities," says the Preacher, "all is vanity!" NAS
One question none of non-Trinitarians have tried to respond to is since God is spirit how do you explain the Holy Spirit? Does a spirit have a spirit?
Revelation 3:1-2
3:1 "And to the angel of the church in Sardis write:
He who has the seven Spirits of God, and the seven stars, says this: 'I know your deeds, that you have a name that you are alive, but you are dead. 2'Wake up, and strengthen the things that remain, which were about to die; for I have not found your deeds completed in the sight of My God. NAS
Hisway your philosophy does not line up with God's truth.