Because of a famine in the land, Isaac moved his household north, from Beer - lahai - roi in the arid region of the Negeb into the more fertile territory of the Philistines at Gerar.
وَيَتَّضِحُ ذلِكَ مِنْ تَعَامُلَاتِهِ مَعَ ٱلْفِلِسْطِيِّينَ .‏