What good is "absolute morality" if each religious group thinks God is on their side?

Question

This is in reply to cons who keep bringing this "absolute morality" versus "relative morality" argument. This one con brought up the fact that liberals thought Clinton have an affair was ok but that we couldn't wait to attack a conservative who did the same.

First of all, he got this wrong. Liberals don't think cheating is ok. We think impeaching a president for lying over a ******* (instead of misleading the nation on Iraq) is a mistake. Newt Gingrich, conservative Republican, was leading the Clinton witchhunt. It turns out Gingrich was cheating on his wife while at the same time criticizing Clinton for the same thing. That is HYPOCRACY. Of course, liberals are going to make a big deal out of it.
http://seattletimes.nwsource.com/html/politics/2003609259_gingrich09.htm

Now back to this "absolute morality" argument. It is a completely useless concept when each religious group thinks they have God on their side and know what "absolute morality" is. Each religious group has a different idea of what that is. Even within religions you have different interpretations.

I LEAVE YOU WITH THE WORDS OF FREDRICK DOUGLASS, FORMER SLAVE TURNED ABOLITIONIST, ON CHRISTIANITY AS PRACTICED IN THE CONSERVATIVE SOUTH:

"I assert most unhesitatingly, that the religion of the South is a mere covering for the most horrid crimes--a justifier of the most appalling barbarity, a sanctifier of the most hateful frauds, and a dark shelter under which the darkest, foulest, grossest, and most infernal deeds of slave holders find the strongest protection. Were I to be again reduced to the chains of slavery, next to that enslavement, I should regard being the slave of a religious master the greatest calamity that could befall me. For of all slaveholders with whom I have ever met, religious slaveholders are the worst. I have ever found them the meanest and basest, the most cruel and cowardly, of all others."
- Fredrick Douglas, Chapter 10, The Narrative of the Life of Frederick Douglass
http://memory.loc.gov/cgi-bin/query/r?ammem/lhbcb:@field(DOCID+@lit(lhbcb25385))

Answer 1

I do not think I have ever seen so many words say so little. I will give you a quote from President Abraham Lincoln in the middle of the civil war,

"The will of God prevails. In great contests each party claims to act in accordance with the will of God. Both may be, and one must be wrong. God can not be for, and against, the same thing at the same time. In the present civil war it is quite possible that God's purpose is something different from the purpose of either party- and yet the human instrumentalities, working just as they do, are of the best adaptation to effect his purpose. I am almost ready to say this is probably true- that God wills this contest, and wills that it shall not end yet. By his mere quiet power on the minds of the now contestants, He could have either saved or destroyed the Union without a human contest. Yet the contest began. And having begun He could give the final victory to either side any day. Yet the contest proceeds."