David
Psalm 125:1BSB·traditional attribution

A song of ascents. Those who trust in the LORD are like Mount Zion. It cannot be moved; it abides forever.

John Calvin Reformed @genevareformer

PSALM 125 As the faithful being mingled in this world with the ungodly seem to be exposed to all the ills of life in the same manner as other people, the Prophet, comparing them to Jerusalem, shows that they are defended by an invincible bulwark. And if God at any time suffer them to be plagued by the malice of the wicked, he exhorts them to be of good hope.

Commenting on Psalm 125:1-5

C.H. Spurgeon Reformed Baptist @princeofpreachers

They that trust in the Lord shall be as mount Zion. The emphasis lies upon the object of their trust, namely, Jehovah the Lord. What a privilege to be allowed to repose in God] How condescending is Jehovah to become the confidence of his people!

Matthew Henry Presbyterian @wholebiblehenry

Here are three very precious promises made to the people of God, which, though they are designed to secure the welfare of the church in general, may be applied by particular believers to themselves, as other promises of this nature may. Here is, I. The character of God's people, to whom these promises belong. Many call themselves God's people who have no part nor lot in this matter.

Commenting on Psalm 125:1-3