Numbers 8:13-18

13And thou shalt setH5975 the LevitesH3881 before AaronH175, and before his sonsH1121, and offer them for a wave-offering unto Jehovah.

14Thus shalt thou separateH914 the LevitesH3881 from among the children of IsraelH3478; and the LevitesH3881 shall beH1961 mine. 15And after that shall the LevitesH3881 goH935 in to do the service of the tentH168 of meetingH4150: and thou shalt cleanseH2891 them, and offer them for a wave-offering. 16For they are wholly givenH5414 unto me from among the children of IsraelH3478; instead of all that openeth the wombH7358, even the first-born of all the children of IsraelH3478, have I takenH3947 them unto me. 17For all the first-born among the children of IsraelH3478 are mine, both manH120 and beast: on the dayH3117 that I smote all the first-born in the landH776 of EgyptH4714 I sanctifiedH6942 them for myself. 18And I have takenH3947 the LevitesH3881 instead of all the first-born among the children of IsraelH3478.