There are two aims with Theoretical Theology. The first is to have well thought out arguments defending God, Christianity and the word of God, particularly the Torah. The second aim it is to suggest that all theology, particularly when there is not consensus among Christians, is by nature theoretical. If the apostles didn't always understand Jesus, how can we assume modern theologians understand Him any better. That said, there are things in the Bible that there is absolutely consensus on: that Jesus was God made flesh, that he came and lived on this earth, and died on the cross to pay for our sins thereby freeing us from the curse of sin, of which we are all guilty.