Then the LORD spoke to Moses, saying:
Numbers 3:44
Surrounding context
3:43 And all the firstborn males, according to the number of names from a month old and above, of those who were numbered of them, were twenty-two thousand two hundred and seventy-three.
3:44 Then the LORD spoke to Moses, saying:
3:45 "Take the Levites instead of all the firstborn among the children of Israel, and the livestock of the Levites instead of their livestock. The Levites shall be Mine: I am the LORD.