A.T. Robertson Commentary Hebrews 13:10

"We have an altar, whereof they have no right to eat that serve the tabernacle." — Hebrews 13:10 (ASV)

We have an altar (εχομεν θυσιαστηριον). We Christians have a spiritual altar (θυσιαστηριον), not a literal one (7:13). This metaphor is carried out.

Whereof (εξ ου). Our spiritual altar.

The tabernacle (τη σκηνη). Dative case with λατρευοντες (serve), σκηνη being used for "the whole ceremonial economy" (Vincent) of Judaism.