Virtually any time somebody who believes the universe was created by God debates another person who denies that claim, odds are good the latter will accuse the former of advocating the “God of the gaps” theory.
That theory is a rhetorical device lobbed by the speaker using it at the other person to claim they are simply inventing “God” to fill in the gaps of their knowledge created by the present lack of a purely materialistic or scientific explanation. The often unstated assumption is that given enough time, such an explanation will be found.
Cross-examined.org’s Dr. Frank Turek addresses the “God of the gaps” theory in the following video and, at least in my humble opinion, makes it crystal clear why it is nothing more than a rhetorical device:
