David
Psalm 68:20ESV·traditional attribution

Our God is a God of salvation, and to GOD, the Lord, belong deliverances from death.

John Calvin Reformed @genevareformer

PSALM 68 In this psalm it was David’s design to celebrate the victories which, through the blessing of God, he had gained over his enemies; As to the time and occasion of the composition of this psalm, the majority of interpreters refer it to the translation of the ark from the house of Obed-Edom to Mount Zion, and with this every part of it would, no doubt, harmonize.

Commenting on Psalm 68:1-35

C.H. Spurgeon Reformed Baptist @princeofpreachers

He that is our God is the God of salvation. The Almighty who has entered into covenant with us is the source of our safety, and the author of our deliverances. As surely as he is our God he will save us. To be his is to be safe. And unto God the Lord belong the issues from death.

Matthew Henry Presbyterian @wholebiblehenry

David, having given God praise for what he had done for Israel in general, as the God of Israel (Psa 68:8), here comes to give him praise as Zion's God in a special manner; compare Psa 9:11. Sing praises to the Lord who dwelleth in Zion, for which reason Zion is called the hill of God. I.

Commenting on Psalm 68:15-21