Unfortunately, the arguments exist because not all are Children of God. Just as the Pharisees, Sadducees, and teachers of the Law thought that they were True, Right, and accurate regarding the Word of God, they were completely blind to the Truth. God Himself placed them into a "deep sleep" so that they could not understand regardless of how hard they tried.
The point of the Bible, which is also the Purpose of Christ, is to Redeem us from the Curse of the Lord so that we can be Righteous, Holy, Blameless and Pure as our Father of Faith, Abraham. No one can be like Abraham unless they receive the same Spiritual Circumcision that he received. Again, this is the "Heart" of the Bible . . . which revolves around the condition of our "heart."