Abraham’s journey to Gerar introduces the familiar dangers of settling in a foreign land. Seeking to integrate peacefully and continue spreading the knowledge of God without clashing with the local authorities [שפתי כהן], he resorts to a strategy of concealment that ultimately leads to Sarah being taken into the local king’s palace. Upon arriving, Abraham declares to the local residents that Sarah is his sister. The primary approach among commentators is that he spoke about her to the townspeople [אבן עזרא, רד״ק, שד״ל, רש״י ואחרים], a detail supported by his use of the third person rather than speaking to her directly [מזרחי, גור אריה]. Alternatively, he may have made this claim to others in Sarah's presence, relying on her silence to serve as her consent [הכתב והקבלה, חזקוני].
Abraham’s renewed fear in Gerar stems from several possible factors. While some suggest that King Abimelech and his people were actually upright and innocent, leaving Abraham acting out of a natural, cautious suspicion of strangers [רמב״ן, הטור הארוך, אור החיים], others maintain that he had heard the locals were wicked and lacked the fear of God, causing him to genuinely fear for his life [רד״ק]. Furthermore, Abraham may have felt particularly vulnerable because he had journeyed there without a direct divine command and lacked the bodyguards who had protected him in Hebron [העמק דבר]. Operating from practical logic, Abraham knew that kings often murdered husbands to claim their wives. By presenting Sarah as a relative, he hoped to buy time, planning to stall any marriage negotiations. However, Abimelech surprised him by seizing her immediately [רב סעדיה גאון, אלשיך].
Notably, unlike their previous experience in Egypt, Abraham did not ask for Sarah’s permission to present her as his sister. Knowing the trauma she endured when taken by Pharaoh, he anticipated she would refuse, prompting him to make the declaration without her consent [רש״י, גור אריה, משכיל לדוד]. Another perspective suggests that Abraham wanted to shoulder the entire responsibility; if the truth were discovered, Sarah would not be seen as an immoral woman who offered herself, but it would be clear that Abraham orchestrated the deception out of fear for his life [לבוש האורה].
The fact that Sarah was taken at the age of ninety is striking. Commentators agree that a miracle occurred, restoring her to her youthful, original beauty to such an extent that kings coveted her [רמב״ן, רד״ק, מלבי״ם]. Acting on the accepted royal right to forcefully take unmarried women [מלבי״ם], Abimelech brought her to his palace instantly, bypassing the grand wedding preparations that Pharaoh had previously arranged [צאינה וראינה].
To prevent the severe transgression of a man taking a married woman and to protect the locals from sin, Abraham actually gave Sarah a conditional divorce out of duress, a practice similar to soldiers departing for war. This legal technicality allowed Abimelech to later claim innocence [רבנו חננאל, רבנו בחיי, רב סעדיה גאון]. Nevertheless, God did not allow the wicked to dominate the righteous and intervened immediately. This divine intervention was not a reward for Abimelech’s character, but rather God's way of preventing the king from sinning, ensuring he could not come near her [חומת אנך, אלשיך].