Numbers 16:7-10

⁷and tomorrow when fire is taken up, put ye incense above before the Lord, and whomever the Lord chooseth, he shall be holy. Ye sons of Levi be much raised.

⁸And again Moses said to Korah, Ye sons of Levi, hear.

⁹Whether it is little to you, that God of Israel hath separated you from all the people, and hath joined you to himself, that ye should serve him in the service of the tabernacle, and that ye should stand before the multitude of the people, and serve him?

¹⁰Made he therefore thee, and all thy brethren the sons of Levi, to nigh to himself, that ye challenge to you also priesthood,