Conscience and the Moral Argument as Evidence for the Goodness of God.

[Thumpalumpacus]

A typical argument would go something like this:

1. If objective moral values exist, then God exists. (because there would be objective and universal moral laws in a godless Universe without a divine Law-Giver.)
2. But we know from our Conscience that objective moral values do in fact exist, and this is a properly basic belief for virtually everybody, including atheists (e.g. that certain acts are intrinsically and objectively evil, like e.g. murder, rape etc, irrespective of the subjective beliefs of murderers and rapists etc).
3. Therefore, granted the fact of the existence of objective moral values known through our Conscience, we can reasonably conclude that our awareness of this Eternal Moral Law came from the Divine Law-Giver Who made us. 

There's a lot of overclaimium here.