God

God most commonly refers to the deity worshiped by followers of monotheistic and monolatrist religions, whom they believe to be the creator and overseer of the universe.

Theologians have ascribed a variety of attributes to the various conceptions of God. The most common among these include omniscience, omnipotence, omnipresence, omnibenevolence (perfect goodness), divine simplicity, jealousy, and eternal and necessary existence. God has also been conceived as being incorporeal, a personal being, the source of all moral obligation, and the "greatest conceivable existent".^[1] These attributes were all supported to varying degrees by the early Jewish, Christian and Muslim theologian philosophers, including Augustine of Hippo,^[2] Al-Ghazali,^[3] and Maimonides.^[2] Many notable medieval philosophers developed arguments for the existence of God,^[4] attempting to wrestle with the apparent contradictions implied by many of these attributes. Philosophers have developed many arguments for and against the existence of God.

http://en.wikipedia.org/wiki/God

It is interesting to note how the idea of God can change when challenged with things like the problem of evil  and modernity.  It is not as static as the quoted article suggests.  This is a very wide and deep topic that will require definitions from many systems of belief.