¹⁵ For when Pharao was hardened, and would not let us go, the Lord slew every firstborn in the land of Egypt, from the firstborn of man to the firstborn of beasts: therefore I sacrifice to the Lord all that openeth the womb of the male sex, and all the firstborn of my sons I redeem.

²⁰ The firstling of an ass thou shalt redeem with a sheep: but if thou wilt not give a price for it, it shall be slain. The firstborn of thy sons thou shalt redeem: neither shalt thou appear before me empty.