²³ I told you: Let my son go so that he may worship me, but you refused to let him go. Look, I am about to kill your firstborn son! ’^(A)

⁴ So Moses said, ‘This is what the Lord says: About midnight I will go throughout Egypt,

¹⁷ For every firstborn among the Israelites is mine, both man and animal. I consecrated them to myself^(A) on the day I struck down every firstborn in the land of Egypt.