Psalms 65:13 - Joseph Benson’s Commentary on the Old and New Testaments

The pastures Which were bare before; are clothed with flocks As they are with grass. They are so well stocked that they seem covered over with sheep and cattle, feeding or resting in them; the valleys also are covered with corn So that the face of the earth cannot be seen for the abundance of it. He mentions valleys, or low grounds, as being generally most fruitful, but does not intend to exclude other places. Such are some of the good effects of these refreshing, fertilizing rains. They shout for joy: they also sing They are abundantly satisfied with thy goodness, and, in their manner, sing forth the praises, and declare the goodness of their great Creator and Benefactor.