בראשית, פרק כ׳, פסוק א׳

Following the dramatic destruction of the surrounding cities and the upheaval within his family, Abraham embarks on a new journey, leaving behind his longtime home in the oak groves of Mamre [רד״ק, חזקוני]. His relocation to the south marks both a physical and spiritual transition, driven by several complementary motives. The primary approach among commentators links his departure directly to the ruin of Sodom. With the cities destroyed, travelers no longer passed through the region, effectively halting Abraham's lifelong mission of welcoming guests [רש״י, מזרחי]. Furthermore, the once-fertile area of Sodom had supplied food for the entire region; its loss created a severe shortage that made basic survival difficult [רלב״ג, אברבנאל]. Beyond the practical challenges, the constant sight of the devastated cities brought Abraham profound sadness [אברבנאל]. Another major factor was his desire to distance himself from his nephew, Lot. Following a shameful incident involving Lot and his daughters, Lot acquired a terrible reputation. Feeling a deep sense of shame, Abraham sought to separate himself from his surroundings so that his own name would not be tarnished by their family connection [רש״י, מזרחי, צרור המור].

Beyond these immediate circumstances, the journey served broader spiritual and educational purposes. After God commanded him to change his name from Abram to Abraham, he chose to move to an unfamiliar place. This allowed him to publicize his new identity and destiny free from the weight of his past, continuing to spread faith in God as a wanderer in the world [מלבי״ם, אברבנאל]. The journey also aimed to establish a foothold in every part of the land God had promised him, as the Philistine territory was considered part of the future inheritance of the tribe of Judah [רד״ק]. Additionally, in anticipation of Isaac's birth, Abraham sought an environment that offered a balance between isolation from negative influences and controlled exposure to society. He selected the Philistine region, which was considered less morally corrupt than the Canaanite areas, to teach his future son how to maintain a life of faith within a complex world [רש״ר הירש].

Abraham directed his travels southward. Some suggest he intentionally sought out an arid region that was similarly dry of kindness and charity, hoping to teach its inhabitants good character traits [שפתי כהן]. He established his presence between two major desert cities, identified as Rekem and Hagra [נתינה לגר]. As a strategic choice, Abraham stationed his massive wealth and vast flocks in the open expanses between these cities, while he personally took up residence within the royal city of Gerar. Living in a central urban hub allowed him to interact directly with the masses and continue calling out in the name of God [ספורנו, העמק דבר]. While some view the accounts of his settling in the broader region and living in the city as simple poetic repetition [רד״ק], others understand it as a chronological progression, noting that he first established his camps in the open spaces before officially moving into the city of Gerar itself [רד״ק, מלבי״ם].