What did the priest have to do at the laver of cleansing before sacrificing?
Before offering sacrifices at the brazen altar, the priest had to stop at the laver of cleansing. It was filled with water and made of brass and looking-glass, so he washed and examined himself, just as a person checks with a mirror while cleaning up.
Les explains that the laver of cleansing stood between the actual tabernacle tent and the brazen altar where the sacrifices were burned. When the priest came in and began his sacrifices at the brazen altar, he first had to stop at the laver. It was filled with water, made of brass, and made of looking-glass. Les illustrates that even today, when you get dirty in the garden or yard and start cleaning up, you check yourself with a mirror; the same process applied at the laver.