Acts 17:28 (NRSV) — Theosis

Jesus replied, “I have shown you many good works from the Father. For which of these are you going to stone me?” The Jews answered, “It is not for a good work that we are going to stone you, but for blasphemy, because you, though only a human being, are making yourself God.” Jesus answered, “Is it not written in your law, “I said, you are gods’? If those to whom the word of God came were called “gods”—and the scripture cannot be annulled—can you say that the one whom the Father has sanctified and sent into the world is blaspheming because I said, “I am God’s Son’?

For they were set to be a light unto the world, and to be the saviors of men; And inasmuch as they are not the saviors of men, they are as salt that has lost its savor, and is thenceforth good for nothing but to be cast out and trodden under foot of men.

Irenaeus

[T]he Word became flesh and the Son of God became the Son of Man: so that man, by entering into communion with the Word and thus receiving divine sonship, might become a son of God.