Go and Sin No more. Once a man had sincerely repented of his sins, God is obligated to heal him of his disease. It could be instantly or gradually depending upon God's grace and mercy. Go and sin no more or worse things will come upon you. James 5:14 Every minister of God has a right to pray for his congregation and they have rights to obey God and be healed. Satan can only be cast out by a time repentance and full surrender to God's perfect will. Divine healing is based upon faith in the Word of God and upon genuine repentance. Praise God.