"Behold, I have taken the Levites, from among the children of Israel, for all the firstborn that openeth the matrix among the children of Israel: so that the Levites shall be mine.

for they are given unto me from among the children of Israel: for I have taken them unto me for all the firstborn that open any matrix among the children of Israel.

All that breaketh the matrix of all flesh that men bring unto the LORD, both of man and beast, shall be thine. Neverthelater, the firstborn of man shall be redeemed, and the firstborn of unclean beasts shall be redeemed.