As the holy flock, as the flock of Jerusalem in her solemn feasts; so shall the waste cities be filled with flocks of men: and they shall know that I am the LORD. As the holy flock - The Church of Christ, without spot, or wrinkle, or any such thing.
The flock of Jerusalem - The Jerusalem that is from above, the city of the living God, the place where his Majesty dwells. As they came in ancient times to the solemn national feasts so shall they come when they have fully returned unto the Lord, and received his salvation by Christ Jesus.
I do not ask my reader's pardon for having considered this most beautiful chapter as relating, not to the restoration from the Babylonish captivity, but to the redemption under the new covenant by Jesus Christ. There is no period of the Jewish history from that time until now, to which it can be applied. It must belong to the Gospel dispensation, and if the Jews will still refuse, contradict, and blaspheme, let no Christian have any fellowship with them in their opposition to this Almighty Savior. Let none be indifferent to his salvation; let all plead his promises; and let the messengers of the Churches proclaim to the Christian world a Free, a Full, and a Present Salvation! And may great grace rest upon themselves, and upon all their flocks!
Commentary on the Bible, by Adam Clarke [1831].