'Altar' in the Bible

For he of whom these things are said belongs to another tribe, from which no one has officiated at the altar.

having a golden altar of incense, and the ark of the covenant overlaid on all sides with gold, in which was a golden pot holding the manna, Aaron's rod that budded, and the tablets of the covenant;

We have an altar from which those who serve the holy tabernacle have no right to eat.