For those whom he foreknew he also predestined to be conformed to the image of his Son, in order that he might be the firstborn among many brothers.
(Romans 8:29 ESV)
Just as we have borne the image of the man of dust, we shall also bear the image of the man of heaven. (1 Corinthians 15:49 ESV)
Since we were created in the image of God, but totally ruined by the fall, we must be recreated in the image of Christ. This is our great hope, our only hope—being renewed in the image of the knowledge of its Creator.