Numbers 1:51-53

⁵¹When men shall go forth, or be removed, the deacons shall take down the tabernacle; when the tents shall be set, they shall set it up. Whoever of strangers nigheth, he shall be slain.

⁵²Soothly the sons of Israel shall set tents, each man by his companies, and his fellowships, and his host;

⁵³forsooth the deacons shall set their tents by compass of the tabernacle, lest indignation be made on the multitude of the sons of Israel; and they shall wake or watch in the keepings of the tabernacle of witnessing.