David
Psalm 102:13ESV·traditional attribution

You will arise and have pity on Zion; it is the time to favor her; the appointed time has come.

John Calvin Reformed @genevareformer

PSALM 102 This prayer seems to have been dictated to the faithful when they were languishing in captivity in Babylon. Sorrowful and humbled, they first bewail their afflictions. In the next place, they plead with God for the restoration of the holy city and temple.

Commenting on Psalm 102:1-28

C.H. Spurgeon Reformed Baptist @princeofpreachers

Thou shalt arise, and have mercy upon Zion. He firmly believed and boldly prophesied that apparent inaction on God's part would turn to effective working. Others might remain sluggish in the matter, but the Lord would most surely bestir himself.

Matthew Henry Presbyterian @wholebiblehenry

Many exceedingly great and precious comforts are here thought of, and mustered up, to balance the foregoing complaints; for unto the upright there arises light in the darkness, so that, though they are cast down, they are not in despair. It is bad with the psalmist himself, bad with the people of God; but he has many considerations to revive himself with. I.

Commenting on Psalm 102:12-22