Revenge and bearing grudges are two commandments about which the Torah says “You may not take revenge and you may not bear a grudge against the people of your nation!”. Chazal explain that “Revenge” refers to one who says “I will do to my friend what he did to me, and in the same way that he withheld goodness from me, so too I will withhold from him!”. “Bearing a grudge” refers to the opposite, when he repays evil with good, but he says to his friend “You see that I am not behaving like you!”, in a fashion that he is showing that he has not forgiven his friend for what he did to him. The Torah obligates us not to bear any grudge whatsoever, and definitely not to be happy when his enemy who did bad to him falls, as is the habit of people lacking intelligence who when they see any bad thing happening to someone who did bad to him they immediately say that he was punished because of what he did to me. If only they would understand that this is bad for him, as anyone whose friend is punished because of him is not brought inside the area of Hashem. Furthermore, about such a person the verse says “And one who rejoices at a punishment will not be forgiven.
