Numbers 8:17-19

Wycliffe Bible

¹⁷ for all the first begotten things of the sons of Israel be mine, as well of men as of beasts (for all the first-born males of the Israelites be mine, of people as well as of beasts), (yea,) from the day in which I smote each first engendered (male) thing in the land of Egypt, I [have] hallowed them to me.

¹⁸ And I took the Levites for all the first begotten (sons) of the sons of Israel; (And I took the Levites in place of all the first-born sons of the Israelites;)

¹⁹ and I gave them by free gift to Aaron and to his sons, from the midst of the people, that they serve me for Israel, in the tabernacle of the bond of peace, and that they pray for them, lest vengeance be in the people, if they be hardy to nigh to the saintuary. (and I gave them as a gift to Aaron and to his sons, out of the midst of the people, to serve me for all the Israelites, in the Tabernacle of the Covenant, and to make amends for them, lest vengeance come upon the people, if they be fool-hardy enough to come near to the sanctuary.)