The story of Abraham saving Lot represents the earliest of a series of examples of the concept of “pidyon shvuyim” — redeeming the captives, invariably at a cost — in Jewish Scripture, rabbinic commentaries and legal codes. That concept, absorbed into the secular culture of the Israeli state and the Zionist movement, helped validate the steep, indeed controversial, price of Sergeant Shalit’s liberation.
Interestingly, he makes note of the juxtaposition between the deal to free Gilad Shalit and Avrohom Avinu's pursuit to secure Lot's release during the War of the 4 vs.5 Kings.
Yet I heard in the name of Rabbi JD Bleich that surprisingly enough, the fact that AA engaged in this act of "Pidyon Shevuyim" still is not sourced anywhere as this being the Makor for the Mitzvah of PS, and is in fact incorrect. The source for PS is the Talmud BB 8a/b, codified in the Shulchan Aruch in Siman 252 of Yoreh Deah that deals with Tzedakah. It seems that the entire Mitzvah is predicated on the idea of altruism.
רבה רמא צדקה איתמי דבי בר מריון א"ל אביי והתני רב שמואל בר יהודה אין פוסקין צדקה על היתומים אפילו לפדיון שבוים א"ל אנא לאחשובינהו קא עבידנא איפרא הורמיז אימיה דשבור מלכא שדרה ארנקא דדינרי לקמיה דרב יוסף אמרה ליהוי למצוה רבה יתיב רב יוסף וקא מעיין בה מאי מצוה רבה א"ל אביי מדתני רב שמואל בר יהודה אין פוסקין צדקה על היתומים אפילו לפדיון שבוים שמע מינה פדיון
פדיון שבוים מצוה רבה היא אמר ליה רבא לרבה בר מרי מנא הא מילתא דאמור רבנן דפדיון שבוים מצוה רבה היא א"ל דכתיב והיה כי יאמרו אליך אנה נצא ואמרת אליהם כה אמר ה' אשר למות למות ואשר לחרב לחרב ואשר לרעב לרעב ואשר לשבי לשבי
So the question is: Why is the rescue of Lot not listed as the source, being that the Talmud endeavors to bring a source and only does so somewhat from the Navi Yermiyahu?
Answered RJDB, with a Medrash. The Medrash says that the "318" people that AA took with him, was really only his trusted servant Eliezer (which adds up to the Gematria of 318). What happened to all of AA's entourage? It seems that when they realized the danger of rescue, they slipped away one by one until only Eliezer remained. They reasoned correctly, that they were not obligated to rescue Lot by putting their own lives in danger.
Which could be why AA/Lot is not the source for PS. PS is perhaps using one's assets to secure release of another, but one needn't endanger his/her own well-being!
Disclaimer: This is only 2nd hand, so it is quite possible that the person who shared this thought with me heard/understood incorrectly.






