Having belly-buttons (navels) is a sign that people were once attached to their mother. But our first parents (Adam and Eve) didn’t develop that way. So, God did not need to add to them the appearance of a false sign that they developed in their mother’s womb.
What kind of testimony that must have been as Adam and Eve told their offspring how God formed them from the dust of the ground and breathed into them the breath of life? They didn’t come through earthly parents.
Adam and Eve told the facts and also bore the evidence of their story in their bodies – they had no belly-buttons “…the LORD God formed man of the dust of the ground… And the LORD God caused a deep sleep to fall upon Adam, and he slept: and he took one of his ribs, and closed up the flesh instead thereof; And the rib, which the LORD God had taken from man, made he a woman, and brought her unto the man” (Genesis 2:7,21-22).
In His service,