Num 1:53, 3:28-29 | ESV | STEP | But the Levites shall camp around the tabernacle of the testimony , so that there may be no wrath on the congregation of the people of Israel . And the Levites shall keep guard over the tabernacle of the testimony .

b ch. 3:7, 8, 38; 8:26; 9:19, 23; 18:3-5; 31:30, 47; 1 Chr. 23:32; [2 Chr. 13:11]

Numbers 1:53

53 But the Levites shall camp around the tabernacle of the testimony, so that there may be no ^awrath on the congregation of the people of Israel. ^bAnd the Levites shall keep guard over the tabernacle of the testimony.”

Numbers 3:28-29

28 According to the number of all the males, from a month old and upward, there were 8,600, keeping guard over the sanctuary. 29 The clans of the sons of Kohath were to camp on the south side of the tabernacle,