Whether or not you are religious, channeling the human impulse to worship into something singular, immaterial, eternal, without form, and with very precise rules to not murder, lie, covet, etc… is quite useful for human organization.

If God or The Gods are defined as not being man-made, then each person will be able to find their own interpretation and understanding. As contrary to man-made objects and concepts. Most modern people worship "the government" or "the state", even though there is no dispute whether it was created by man or not and whether it acts under the influence of man or not.