River — With rain, which he very significantly calls a river for its plenty, and the river of God, of God's immediate providing. Them — The inhabitants of the earth. Provided — Or, disposed, the earth, which without this would be hard and barren.
Related Commentaries of Psalms 65:9
Psalms 65:9
9 Thou visitest the earth, and waterest it: thou greatly enrichest it with the river of God, which is full of water: thou preparest them corn, when thou hast so provided for it.