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There is not more than one doctrine in the bible. What there is is that things were done physically in the Old Testament and spiritually in the New Testament, but is actually the same law of God. For example, only the high priest could enter the most holy place behind the curtain. Today Jesus, our high priest has tore down the divide. Now those who are in the holy place (church) may enter the most holy place (heaven). Christ's church was represented in the Old Testament, but now it is actually here. He purchased and established it, and it is to remain unchanged until His coming. Those who have changed it and caused branch off churches are false doctrines and will face God's wrath. "They worship Me in vain, their doctrine is merely human rules." These false doctrines are not from the bible.
