וּבְמֹפְתִים. זֶה הַדָּם, “Wonders,” (Deut. 26:8) - this is a reference to the blood. (Hag.) This is not like the blood that spills from their bodies when they die. They did not die like the sick since the angels do not disfigure them when he slaughters them. Rather, he slaughtered them as one slaughters an animal causing their blood to spill out. לפי Since the plagues that we have mentioned were not individual plagues for the entire group, there were some that felt some plagues and some that felt other plagues. Therefore, Rabbi Eliezer and Rabbi Akiva did not interpret them. Instead they interpreted the plague that smote all of them (together). One said there were forty, one said there were fifty as shall be explained with God’s help.