Our God is a God of salvation, and to GOD, the Lord, belong deliverances from death.
David composed this psalm to celebrate victories God granted him over his enemies, most likely after his triumph over the Ammonites and Syrians when the ark returned to Jerusalem. The ark's ascent to the holy mountain prefigures Christ's far more glorious ascension to heaven after He conquered His enemies and ours. Though the psalm rises to great heights of sublimity, its interpretation presents considerable difficulty at many points.
AI summary
Commenting on Psalm 68:1-35
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.
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