Laws must benefit the society. Morality also must bring benefits to the society. They are not extensionally equivalent. They have different origins and authority . Without revelation we cannot discover religious obligations.
Religion requires faith.
They have different internal and external sanctions. They are applicable to different beings. Morality seems to be more universal than any religion can be. Cults do not. Frequently, religious cults require people to do things which are both immoral and irrational.