民数记 8:22

然后利未人进去，在亚伦和他儿子面前，在会幕中办事。耶和华指着利未人怎样吩咐摩西，以色列人就怎样向他们行了。

And after that went the Levites in to do their service in the tabernacle of the congregation before Aaron, and before his sons: as the LORD had commanded Moses concerning the Levites, so did they unto them.