Charles Ellicott Commentary Numbers 18:32

"And ye shall bear no sin by reason of it, when ye have heaved from it the best thereof: and ye shall not profane the holy things of the children of Israel, that ye die not." — Numbers 18:32 (ASV)

And ye shall bear no sin ... — that is, shall not incur any guilt, or become liable to any punishment. (See Note on Numbers 18:22.)