Charles H. Spurgeon on Psalms 75:9

But I will declare for ever. Thus will the saints occupy themselves with rehearsing Jehovah's praises, while their foes are drunken with the wine of wrath. They shall chant while the others roar in anguish, and justly so, for the former Psalm informed us that such had been the case on earth, —"thine enemies roar in the sanctuary, " —the place where the chosen praised the Lord. I will sing praises to the God of Jacob. The covenant God, who delivered Jacob from a thousand afflictions, our soul shall magnify. He has kept his covenant which he made with the patriarch, and has redeemed his seed, therefore will we spread abroad his fame world without end.