Leviticus 10:1-3

Douay-Rheims 1899 American Edition

10 And Nadab and Abiu, the sons of Aaron, taking their censers, put fire therein, and incense on it, offering before the Lord strange fire: which was not commanded them.

² And fire coming out from the Lord destroyed them, and they died before the Lord.

³ And Moses said to Aaron: This is what the Lord hath spoken: I will be sanctified in them that approach to me, and I will be glorified in the sight of all the people. And when Aaron heard this, he held his peace.