And once every year Aaron is to make its horns clean: with the blood of the sin-offering he is to make it clean once every year from generation to generation: it is most holy to the Lord.
And every evening, when he puts the lights up in their places, the spices are to be burned, a sweet-smelling smoke going up before the Lord from generation to generation for ever.
And Nadab and Abihu, the sons of Aaron, took their vessels and put fire in them and perfume, burning strange fire before the Lord, which he had not given them orders to do.