You've got everything mixed up. You and your wife are 2 people. The dogmas of the Christian church say that we have not 2 Gods and not 3, but one God. So the comparison with you and your wife is not correct.
God is one, but has 3 hypostases: Father, Son and Holy Spirit. God the Son became incarnate in man, therefore Jesus Christ is both God and man. As a man He suffered on the cross, but as God He is always omnipresent, as God the Father and God the Holy Spirit.
He was like a man with a body in a tomb, but as God He was on the same day in paradise with the thief, and in hell with Adam and next to God the Father (who is also omnipresent).
The Creed: The Symbol of Faith
I believe in one God, the Father Almighty, Maker of Heaven and Earth and of all things visible and invisible.
And in one Lord Jesus Christ, the Son of God, the only-begotten, begotten of the Father before all ages. Light of light; true God of true God; begotten, not made; of one essence with the Father, by Whom all things were made; Who for us men and for our salvation came down from Heaven, and was incarnate of the Holy Spirit and the Virgin Mary, and became man. And He was crucified for us under Pontius Pilate, and suffered, and was buried. And the third day He arose again, according to the Scriptures, and ascended into Heaven, and sits at the right hand of the Father; and He shall come again with glory to judge the living and the dead; Whose Kingdom shall have no end.
And in the Holy Spirit, the Lord, the Giver of Life, Who proceeds from the Father; Who with the Father and the Son together is worshipped and glorified; Who spoke by the prophets.
In one Holy, Catholic, and Apostolic Church. I acknowledge one baptism for the remission of sins. I look for the resurrection of the dead and the life of the world to come. Amen.
I believe in one God, the Father Almighty, Maker of Heaven and Earth and of all things visible and invisible. And in one Lord Jesus Christ, the Son of God, the only-begotten, begotten of the Father before all ages. Light of light; true God of true God; begotten, not made; of one essence with...
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