Cross reference
Hebrews 13:10
10 we have an altar, of which to eat they have no authority who the tabernacle are serving,
1 Corinthians 9:13
13 Have ye not known that those working about the things of the temple -- of the temple do eat, and those waiting at the altar -- with the altar are partakers?
Numbers 3:7-8
7 and kept his charge, and the charge of all the company before the tent of meeting, to do the service of the tabernacle;
8 and they have kept all the vessels of the tent of meeting, and the charge of the sons of Israel, to do the service of the tabernacle;
Numbers 7:5
5 `Receive from them, and they have been to do the service of the tent of meeting, and thou hast given them unto the Levites, each according to his service.'
1 Corinthians 5:7-8
7 cleanse out, therefore, the old leaven, that ye may be a new lump, according as ye are unleavened, for also our passover for us was sacrificed -- Christ,
8 so that we may keep the feast, not with old leaven, nor with the leaven of evil and wickedness, but with unleavened food of sincerity and truth.
1 Corinthians 10:17-18
17 because one bread, one body, are we the many -- for we all of the one bread do partake.
18 See Israel according to the flesh! are not those eating the sacrifices in the fellowship of the altar?
1 Corinthians 10:20
20 `no,' but that the things that the nations sacrifice -- they sacrifice to demons and not to God; and I do not wish you to come into the fellowship of the demons.