Numbers 18:6-7 And I, behold, I have taken your brethren the Levites from among the children of Israel: to you they are a gift, given unto Jehovah, to do the service of the tent of meeting.

ASV_Strongs⁽ⁱ⁾

6 H3947 And I, behold, I have taken H251 your brethren H3881 the Levites H8432 from among H1121 the children H3478 of Israel: H4979 to you they are a gift, H5414 given H3068 unto Jehovah, H5647 to do H5656 the service H168 of the tent H4150 of meeting.

7 H1121 And thou and thy sons H8104 with thee shall keep H3550 your priesthood H1697 for everything H4196 of the altar, H1004 and for that within H6532 the veil; H5647 and ye shall serve: H5414 I give H3550 you the priesthood H5656 as a service H4979 of gift: H2114 and the stranger H7131 that cometh nigh H4191 shall be put to death.