'Lifting' in the Bible

'And thou hast said unto them, In your lifting up its fat out of it, then it hath been reckoned to the Levites, as increase of a threshing-floor, and as increase of a wine-vat;

and ye bear no sin for it, in your lifting up its fat out of it, and the holy things of the sons of Israel ye do not pollute, and ye die not.'