Romans 8:29
For whom he did foreknow, he also did predestinate to be conformed to the image of his Son, that he might be the firstborn among many brothers.
Torrey's Topical Textbook—AKJV

2 Corinthians 3:18
But we all, with open face beholding as in a glass the glory of the Lord, are changed into the same image from glory to glory, even as by the Spirit of the LORD.
Torrey's Topical Textbook—AKJV

1 John 3:2
Beloved, now are we the sons of God, and it does not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is.
Torrey's Topical Textbook—AKJV