"Purification" is a consequence of a person's study of the Holy Scriptures of the Prophets, the Teachings of Christ and the Apostles, which is manifested by the realization of the falsity of his views, beliefs, and the fulfillment of the Will of God, His Covenants leads to a moral, spiritual liberation of the worldview and way of life from everything that contradicts God's Commandments, i.e. to the change of a sinful way of life to a righteous one.