Bede the Venerable ca. 673-735 a.d.
We know that when he appears we shall be like him. And Paul also explains this in other words, saying, When Christ, your life, appears, then you will appear with him in glory. (Col. 3:4) We shall be like him, he says, because when we shall enjoy with attentive regard (Lat. contemplatio) his unchangeable and eternal divinity, we also shall be immortal and like him indeed, because we shall be happy. And yet, we shall not be like our Creator, because we are creatures. For who among the children of God shall be like God? (Ps. 89:6) Although this can also seem to be said about the immortality of the body and in this we shall indeed be like God, but [in fact we will be] only like the Son who alone among the persons of the Trinity received a body, in which he died, rose and brought it to the heavenly heights. (Commentary on Jn. 3:1-3:2)