Numbers 8:11

8:11 and Aaron is to offer the Levites before the Lord as a wave offering from the Israelites, that they may do the work of the Lord.

Numbers 10:33

10:33 So they traveled from the mountain of the Lord three days’ journey; and the ark of the covenant of the Lord was traveling before them during the three days’ journey, to find a resting place for them.

Numbers 31:16

31:16 Look, these people through the counsel of Balaam caused the Israelites to act treacherously against the Lord in the matter of Peor – which resulted in the plague among the community of the Lord!