'Forever' in the Bible

For I have taken the breast of the wave offering and the thigh of the contribution from the sons of Israel from the sacrifices of their peace offerings, and have given them to Aaron the priest and to his sons as their due forever from the sons of Israel.

These the Lord had commanded to be given them from the sons of Israel in the day that He anointed them. It is their due forever throughout their generations.’”

It shall be for Aaron and his sons, and they shall eat it in a holy place; for it is most holy to him from the Lord’s offerings by fire, his portion forever.”