NUM 18:32

32 And ye shall not do sin on this thing, and reserve [[the]] noble things and [[the]] fat to you, lest ye defoul the offerings of the sons of Israel, and ye die. (And ye shall not do sin with these things, and take the noble and the fat things for yourselves, lest ye defile the offerings of the Israelites, for then ye shall die or for then ye must be put to death.)