'Clean' in the Bible

Every day an ox is to be offered as a sin-offering, to take away sins: and by this offering on it, you will make the altar clean from sin; and you are to put oil on it and make it holy.

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 make from them a perfume, such as is made by the art of the perfume-maker, mixed with salt, and clean and holy.