David
Psalm 48:6ESV·traditional attribution

Trembling took hold of them there, anguish as of a woman in labor.

John Calvin Reformed @genevareformer

PSALM 48 In this psalm there is celebrated some notable deliverance of the city of Jerusalem at a time when many kings had conspired to destroy it. The prophet, (whoever was the author of the psalm,) after having given thanks to God for this deliverance, takes occasion from thence to extol in magnificent terms the happy state of that city, seeing it had God for its continual guardian and protector.

Commenting on Psalm 48:1-14

C.H. Spurgeon Reformed Baptist @princeofpreachers

Fear took hold upon them there. They were in Giant Despair's grip. Where they hoped to triumph, there they quivered with dismay. They did not take the city, but fear took hold on them. And pain, as of a woman in travail.

Matthew Henry Presbyterian @wholebiblehenry

The psalmist is designing to praise Jerusalem and to set forth the grandeur of that city; but he begins with the praises of God and his greatness (Psa 48:1), and ends with the praises of God and his goodness, Psa 48:14. For, whatever is the subject of our praises, God must be both the Alpha and Omega of them.

Commenting on Psalm 48:1-7