LXX Num 1:51

καὶ ἐν τῷ ἐξαίρειν τὴν σκηνὴν καθελοῦσιν αὐτὴν οἱ Λευεῖται, καὶ ἐν τῷ παρεμβάλλειν τὴν σκηνὴν ἀναστήσουσιν. καὶ ὁ ἀλλογενὴς ὁ προσπορευόμενος ἀποθανέτω.

Whenever the tabernacle is to move, the Levites are to take it down, and whenever it is to be pitched, the Levites are to set it up. Any outsider who goes near it must be put to death.