מדרש על ישעיהו 65:14

Rabbi José said: All that night the Israelites were eating and drinking, rejoicing and taking wine and praising their God with a loud voice, whilst the Egyptians were crying with a bitter soul, because of the plague which came upon them suddenly, as it is said, "And there was a great cry in Egypt; for there was not a house where there was not one dead" (Ex. 12:80).