Numbers 5:30

5:30 or when jealous feelings come over a man and he becomes suspicious of his wife; then he must have the woman stand before the Lord, and the priest will carry out all this law upon her.

Numbers 16:7

16:7 put fire in them, and set incense on them before the Lord tomorrow, and the man whom the Lord chooses will be holy. You take too much upon yourselves, you sons of Levi!”