John Kunkel wrote:

Which begs the question....Why did such an omnipotent god need to go through
the drill of the great flood when a snap of the fingers (figuratively) would
have wiped out the entire population of the Earth except Noah's family? Why
have Noah build an ark when a snap of the fingers would have made it appear?


Supposedly it took Noah 120 years to build that ark and he was preaching/testifying to his
generation at that time. God was giving that generation 120 years to repent of all their
evils, even while knowing beforehand that none of them would. While His judgments may
seem harsh by some standards today He has been quite lenient in dealing with His people,
and those who are not His chosen people.