If you object to this idea, consider: why would a holy God inhabit the physical universe, even taking on human nature, without bringing these into his divine nature? Jesus went to all the trouble to be born of a virgin, this, because his interaction with the physical realm in his incarnation expressed his divinity.
Note: I am not referring to the Mormon teaching that humans can become gods just as Jesus is god. Mormons are simply mistaken in their views about Jesus. The true view: Jesus is the second person of the Trinity, uncreated deity, the Creator of all things.
Two aspects of deification...
In the new heavens and new earth we will enjoy the full benefits of this deification of human nature. Thus, we will become deified. This does not mean we become God; we will always remain created creatures, always human, never deity.
In the incarnation, in taking on human form, Jesus as second person of the Trinity was capable of experiencing suffering. Thus, he absorbed human nature into God's nature; he deified human nature.
The idea of deification is based on the teaching of the Orthodox (eastern) Church.