New Defender's Study Bible Notes
20:1 Gerar. Gerar was capital of the Philistine colony on the seacoast. The Philistines were descendants of Ham through Mizraim, and apparently were originally from Crete. Some centuries later, they all migrated to Canaan and became a strong coastal nation, inveterate enemies of Israel. The name Palestine came from them. The title of their kings at this time was Abimelech, similar to Pharaoh in Egypt.