Then the Lord spoke to Moses: One more plague I will bring upon Pharaoh and upon Egypt. After that he will let you depart. In fact, when he finally lets you go, he will drive you away.
And so at midnight the Lord struck down every firstborn in the land of Egypt, from the firstborn of Pharaoh sitting on his throne to the firstborn of the prisoner in the dungeon, as well as all the firstborn of the animals.
The Lord answered Moses: Now you will see what I will do to Pharaoh. For by a strong hand, he will let them go; by a strong hand, he will drive them from his land. Confirmation of the Promise to the Ancestors.
for this time I will unleash all my blows upon you and your servants and your people, so that you may know that there is none like me anywhere on earth.
Or did any god venture to go and take a nation for himself from the midst of another nation, by testings, by signs and wonders, by war, with strong hand and outstretched arm, and by great terrors, all of which the Lord, your God, did for you in Egypt before your very eyes?
When asked further, “What reparation offering should be our amends to God?” they replied: “Five golden tumors and five golden mice to correspond to the number of Philistine leaders, since the same plague has struck all of you and your leaders.