The trouble with the belief that morality comes from God, is that man corrupts "God" to their own wants and needs (they take God's name in vain). Then they start to write laws in "His" name...and you end up with different religions and further divide of humanity not unity. There need only be one rule, "Do unto others as you would have them do unto you". Even an Atheist can accept that. That law is written on every heart.