9 And it shall be as a sign in thy hand, and as a memorial before thy eyes: and that the law of the Lord be always in thy mouth, for with a strong hand the Lord hath brought thee out of the land of Egypt.
10 Thou shalt keep this observance at the set time from days to days.
11 And when the Lord shall have brought thee into the land of the Chanaanite, as he swore to thee and thy fathers, and shall give it thee:
12 Thou shalt set apart all that openeth the womb for the Lord, and all that is first brought forth of thy cattle: whatsoever thou shalt have of the male sex, thou shalt consecrate to the Lord.
13 The firstborn of an ass thou shalt change for a sheep: and if thou do not redeem it, thou shalt kill it. And every firstborn of men thou shalt redeem with a price.
14 And when thy son shall ask thee to morrow, saying: What is this? thou shalt answer him: With a strong hand did the Lord bring us forth out of the land of Egypt, out of the house of bondage.
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.