ונתן לך רחמים ורחמך והרבך כאשר נשבע לאבתיך
When someone is charged with carrying out an execution, it can have a strong negative effect on his sensitivities. After all, it means taking the life of another human being. This emotion is exacerbated when it involves the mass execution of an entire Jewish city of men, women, children — even livestock. Such action takes its toll on the most compassionate person, rendering him callous to suffering. Thus, Hashem promises the nation that the executioners, who carry out this most difficult punishment, will be infused with a Heavenly-sponsored dose of compassion to counteract the soulless nature of their work. Once…