Rabbi Natan and Rabbi Acha said in the name of Rabbi Simon, "The gematria (numerical value) of 'accept what is good,' is accept the soul. Israel said, 'Behold our fat, our blood and our souls. May it be Your will that it be atonement for us.'"
Rabbi Natan and Rabbi Acha said in the name of Rabbi Simon
Yalkut Shimoni on Nach 533:3