The Lord’s servant’s faithful adherence to his faithful God 

To stand in Jerusalem which is situated on the hill of Zion, the surrounding hills being much higher would seem to stand as sentinels, watching protectively over the city. The writer compares that to the safety and security of the church within the all-embracing protection of God. That guardianship is as immovable and enduring as the solidity of mountains. 

Whilst that is true, yet the church will be subject to the rod of affliction, particularly from its opposers, but their dominion of harshness will not continue to rest upon His people. Otherwise, they may be tempted under a persistent discipline of chastening to turn to iniquity. But the upright will know the goodness of God, and consequently there will be peace upon the Israel of God.