David
Psalm 48:14ESV·traditional attribution

that this is God, our God forever and ever. He will guide us forever.

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

For this God is our God for ever and ever. A good reason for preserving a record of all that he has wrought. Israel will not change her God so as to wish to forget, nor will the Lord change so as to make the past mere history. He will be the covenant God of his people world without end.

Matthew Henry Presbyterian @wholebiblehenry

We have here the good use and improvement which the people of God are taught to make of his late glorious and gracious appearances for them against their enemies, that they might work for their good. I. Let our faith in the word of God be hereby confirmed.

Commenting on Psalm 48:8-14