Hebrews 9:1
1Now indeed even the first covenant had ordinances of divine service and an earthly sanctuary.
Even the first covenant had ordinances of divine service and an earthly place of holiness. Wesley: ordinances of outward worship, and a worldly—visible, material—sanctuary or tabernacle. Of this sanctuary the apostle treats in vv. 2–5; of those ordinances, in vv. 6–10.
Both camps begin here together: the old covenant had a God-appointed cultus. Arminian interpreters hear no scorn for Moses, only the frank admission that the sanctuary was earthly and the regulations outward. The contrast coming is—earthly tent toward heavenly reality.
Calvin: after speaking of the abrogation of the old covenant, he refers specially to the ceremonies. Under the old covenant there was a specific form of divine worship annexed to it, consisting of sacrifices, ablutions, and other symbols, together with the sanctuary. He calls it worldly because there was no heavenly truth or reality in those rites as such.
The first covenant's worship was no illusion, God-given, and temporary. "Earthly" names its sphere and limitation, not a pagan invention. Both camps refuse to despise the shadow while insisting the shadow is not the substance.