Numbers 18:31

καὶ ἔδεσθε αὐτὸ ἐν παντὶ τόπῳ ὑμεῖς καὶ οἱ οἶκοι ὑμῶν ὅτι μισθὸς οὗτος ὑμῖν ἐστιν ἀντὶ τῶν λειτουργιῶν ὑμῶν τῶν ἐν τῇ σκηνῇ τοῦ μαρτυρίου