Theosis in the Old Covenants and the New Covenants

Theosus says we go beyond creaturely existence to now become something beyond human. This is kind of a misunderstanding I see from a lot of people and usually this is when they're describing Eastern Orthodoxy. But what I want to look at is one particular part of this argument. Our Paul says, but even to this day when Moses is read a veil lies on their heart. It's talking about the unbelieving Jewish people. Nevertheless when one turns to the Lord the veil is taken away. Now the Lord is spirit in where the spirit of the Lord is there is liberty.