You visit the earth, and water it: you greatly enrich it with the river of God, which is full of water: you prepare them grain, when you have so provided for it.
All Commentaries on Psalms 65:9 Go To Psalms 65
Augustine of Hippo
AD 430
13. "Thou hast visited the earth, and hast inebriated it" (ver. 9). Whence hast inebriated the earth? "Thy cup inebriating how glorious it is!" "Thou hast visited the earth, and hast inebriated it." Thou hast sent Thy clouds, they have rained down the preaching of the truth, inebriated is the earth. "Thou hast multiplied to enrich it." Whence? "The river of God is filled with water." What is the river of God? The people of God. The first people was filled with water, wherewith the rest of the earth might be watered. Hear Him promising water: "If any man thirst, let him come to Me and drink: he that believeth on Me, rivers of living water from his belly shall flow :" if rivers, one river also; for in respect of unity many are one. Many Churches and one Church, many faithful and one Bride of Christ: so many rivers and one river. Many Israelites believed, and were fulfilled with the Holy Spirit; from thence they were scattered abroad through the nations, they began to preach the truth, and from the river of God that was filled with water, was the whole earth watered. "Thou hast prepared food for them: because thus is Thy preparing." Not because they have deserved of Thee, whom Thou hast forgiven sins: the merits of them were evil, but Thou for Thy mercy's sake, "because thus is Thy preparing," thus "Thou hast prepared food for them."