So why is it so hard to consider that there was possibly more than one Adam created in the beginning of life on earth?
And God said, Let us make man in our image, after our likeness: and let them have dominion over the fish of the sea, and over the fowl of the air, and over the cattle, and over all the earth, and over every creeping thing that creepeth upon the earth.
Gen 1:26
Of course, God in Genesis 1:26 is interpreted from the Hebrew term Elohim which is plural, which would represents "the Gods said, Let us make man..." Yet the Gods is consistent with the NT teaching that in the beginning was the Word and the Word was with God and the Word was God. While the Spirit is light, the Word is light, I realize that some will say the Word is sound and not light but how do you hear with your eyes since you are hearing what is I am saying.
If one recalls the testimony given in John 5:19, Then answered Jesus and said unto them, Verily, verily, I say unto you, The Son can do nothing of himself, but what he seeth the Father do: for what things soever he doeth, these also doeth the Son likewise. Therefore if the Son said a man shall leave his mother and father and cleave unto his wife, then therefore the man and his wife shall be one flesh, thence in Genesis 2 Elohim (Spirit and Word) are thence referred unto as the LORD God.
And of course in Genesis 3, the serpent is the most subtil beast of the field that the LORD God had made, and in Genesis 1:24 And God said, Let the earth bring forth the living creature after his kind, cattle, and creeping thing, and beast of the earth after his kind: and it was so.
So to those who were formed from the dust of the ground,being the sons of God who were formed not by blood, nor the will of the flesh, nor the will of man but of God then they probably won't get the meaning of John 20:27-28
27 Then saith he to Thomas, reach hither thy finger, and behold my hands; and reach hither thy hand, and thrust it into my side: and be not faithless, but believing.
28 And Thomas answered and said unto him, My Lord and my God.