Numbers 8:17-19

Common English Bible

¹⁷ Every oldest male among the Israelites is mine, whether human or animal. When I killed all the oldest males in the land of Egypt, I dedicated them to myself. ¹⁸ I have taken the Levites in place of all the oldest among the Israelites. ¹⁹ I have selected the Levites from the Israelites for Aaron and his sons to perform the service of the Israelites in the meeting tent and to seek reconciliation for the Israelites so that there will not be a plague when the Israelites approach the sanctuary.