Hebrews 13:10
"We have an altar, whereof they have no right to eat which serve the tabernacle."
Cross References (ranked by relevance)
1 Corinthians 10:20
But I say, that the things which the Gentiles sacrifice, they sacrifice to devils, and not to God: and I would not that ye should have fellowship with devils.
1 Corinthians 9:13
Do ye not know that they which minister about holy things live of the things of the temple? and they which wait at the altar are partakers with the altar?
Numbers 7:5
Take it of them, that they may be to do the service of the tabernacle of the congregation; and thou shalt give them unto the Levites, to every man according to his service.