Why Abraham Slew the Four Kings Who First Drew the Sword

Midrash Tanchuma Buber, Lech Lecha 7:3

Another interpretation of (Psalms 37:15) "Their sword shall enter their own heart": These are the four kings, Amraphel and his companions, for until now there had been no war in the world. They came and opened with the sword, as it is said (Genesis 14:1), "And it came to pass in the days of Amraphel" — they began to make war. The Holy One, blessed be He, said to them: You are wicked! You have opened with the sword. Let the sword enter the heart of those same men, as it is said (Psalms 37:15), "Their sword shall enter their own heart." Immediately Abraham rose up against them and killed them, as it is said (Genesis 14:15), "And he divided himself against them by night."

Themes

Biblical References