Adore his footstool. . .The ark of the covenant was called, in the Old Testament, God's footstool: over which he was understood to sit, on his propitiatory, or mercy seat, as on a throne, between the wings of the cherubims, in the sanctuary: to which the children of Israel paid a great veneration. But as this psalm evidently relates to Christ, and the New Testament, where the ark has no place, the holy fathers understand this text, of the worship paid by the church to the body and blood of Christ in the sacred mysteries: inasmuch as the humanity of Christ is, as it were, the footstool of the divinity. So St. Ambrose, L. 3. De Spiritu Sancto, c. 12. And St. Augustine upon this psalm.
98:6. Moses and Aaron among his priests: and Samuel among them that call upon his name. They called upon the Lord, and he heard them:
Moses and Aaron among his priests. . .By this it is evident, that Moses also was a priest, and indeed the chief priest, inasmuch as he consecrated Aaron, and offered sacrifice for him. Lev. 8. So that his pre-eminence over Aaron makes nothing for lay church headship.
98:7. He spoke to them in the pillar of the cloud. They kept his testimonies, and the commandment which he gave them.
98:8. Thou didst hear them, O Lord our God: thou wast a merciful God to them, and taking vengeance on all their inventions.
All their inventions. . .that is, all the enterprises of their enemies against them, as in the case of Core, Dathan, and Abiron.
98:9. Exalt ye the Lord our God, and adore at his holy mountain: for the Lord our God is holy.
Psalms Chapter 99
Jubilate Deo.
All are invited to rejoice in God the creator of all.