¹⁵ And it came to pass, when Pharaoh would hardly let us go, that the LORD slew all the first-born in the land of Egypt, both the first-born of man, and the first-born of beasts: therefore I sacrifice to the LORD all that openeth the matrix, being males; but all the first-born of my children I redeem.

⁸ And the LORD brought us out of Egypt with a mighty hand, and with an out-stretched arm, and with great terribleness, and with signs, and with wonders;