You can back your old earth creationist pastor into seeing the veracity of young earth creationism by pointing-out to him or her that where today are deserts in the Middle East were grasslands with lakes and streams in the days of Nimrod, Canaan, Abraham, and all the rest, until the days of Moses and the Exodus from Egypt when the Ice Age was ending, and that the Ice Age was caused by the ocean warmer top-to-bottom in the aftermath of Noah’s Flood (see Page titled Natural Selection by Noah’s Flood).
