Numbers 16:32

Their houses] their households, as in Numbers 1:2; Genesis 7:1. The sons of Korah, however, did not perish: see Numbers 26:11.

36-39. The censers used by Korah and his company are collected and made into a covering for the altar, as a memorial of their sin and punishment, and a warning to others against profaning holy things: cp. Judges 1:11.

37. Eleazar is commanded to do this, not Aaron, who, as high priest, must not defile himself with contact with the dead: see Leviticus 21:11;