God’s creeation is “not good” because the person’s creation is incomplete because the person is alone.
Adam and the Fall
Therefore as sin came into the world through one man and death through sin, and so death spread to all men because all men sinned . . . . Then as one man’s trespass led to condemnation for all men, so one man’s act of righteousness leads to acquittal and life for all men. For as by one man’s disobedience many were made sinners, so by one man’s obedience, many will be made righteous.