A second famine caused Isaac and Rebekah to go Gerar. This is another example, similar to Abraham and Sarah going to Egypt, of making a bad decision rather than trusting the Lord.
Isaac’s Famine
September 19th
God sterilized an outbreak of a virulent pathogen by raining down burning Sulfur. It may have come from a close pass of the Planet Venus, for which there is historical and cultural evidence.
September 18th
God used famines in the lives of Abraham, Isaac and Jacob to test their faith. It indicates that the climate was unstable, or cyclical, with periods of warming and cooling. There has been a net loss of global ice ever since.