Numbers 18:2-4

2And thy brethren alsoH1571, the tribeH4294 of LeviH3878, the tribeH4294 of thy fatherH1, bringH7126 near with thee, that they may unite with thee, and minister unto thee; but thou and thy sonsH1121 with thee [shall serveH8334] before the tentH168 of the testimonyH5715.

3And they shall keepH8104 thy chargeH4931, and the chargeH4931 of the whole tentH168: onlyH389 they shall not come near to the vesselsH3627 of the sanctuaryH6944 and to the altarH4196, that they may not dieH4191, and you as wellH1571 as they.

4And they shall unite with thee, and keepH8104 the chargeH4931 of the tentH168 of meetingH4150, for all the serviceH5656 of the tentH168; and no stranger shall come near to you.