שמואל ב כ׳:כ׳-כ״ב

חלילה חלילה לי. חלילה לי, חלילה למלך:

Far be it, far be it from me. Far be it from me, far be it from the king.

נשא ידו במלך בדוד. במלך אפילו אינו דוד, חייב מיתה, ובדוד אפילו אינו מלך, חייב מיתה, וכל שכן במלך בדוד, כך נדרש במדרש קהלת (ט יח):

Lifted his hand against the king, Dovid. Against the king even if it were not Dovid he is punishable by death. Alternatively if it were against Dovid [who is a scholar] even if he was not the king, he [Shevah] is punishable by death. All the much more so [now that he has rebelled] against the king, against Dovid. This is how this verse is expounded upon in the Midrash Koheles.

ותבא האשה אל כל העם בחכמתה. שנינו בתוספתא (תרומות סוף פרק ז): אמרה להם: הואיל והוא נהרג והם נהרגין, תנוהו להם, אם היה יכול להנצל, כגון שהוא מבפנים ואתם מבחוץ, ואתם בסכנה והוא יכול להמלט, אין דוחין נפש מפני נפש להורגו בשביל הצלתכם, אבל עכשיו שגם הוא יהרג עמכם, הואיל ונהרסו החומות ואין כח להמלט, מוטב ימות לבדו ואל תמותו עמו רבי שמעון אומר, כך אמרה להם: המורד במלכות בית דוד חייב מיתה:

The woman came [and spoke] to all the people. It is taught in a Tosefta:⁹Terumos 7:23. "She said to them, 'Since both he will be killed and they will be killed [they should] hand him over to them.¹⁰To Yoav’s men. If he were able to be saved, for example he was inside and you were on the outside and you were in mortal danger [fighting Yoav] [but] he could escape¹¹While you would be fighting. [then we have a rule that] it is prohibited to let one person be killed in order to save another, [therefore, you cannot] have him killed to save yourselves. But now that he is [anyway] going to be killed with you because the walls have been breached and there is no possibility of escape,¹²For anyone. [then] it is better that he alone die and you should not die along with him.' Rebbe Shimon said, this is what she said to them, 'Anyone who has rebelled against the kingdom of the House of Dovid is punishable by death.'¹³Threfore Shevah must be killed in order for you to be spared.