Charles H. Spurgeon on Psalms 104:15

And wine that maketh glad the heart of man. By the aid of genial showers the earth produces not merely necessaries but luxuries, that which furnishes a feast as well as that which makes a meal. O that man were wise enough to know how to use this gladdening product of the vine; but, alas, he full often turns it to ill account, and debases himself therewith. Of this he must himself bear the blame; he deserves to be miserable who turns even blessings into curses. And oil to make his face to shine. The easterns use oil more than we do, and probably are wiser in this respect than we are: they delight in anointing with perfumed oils, and regard the shining of the face as a choice emblem of joy. God is to be praised for all the products of the soil, not one of which could come to us were it not that he causeth it to grow. And bread which strengtheneth man's heart. Men have more courage after they are fed: many a depressed spirit has been comforted by a good substantial meal. We ought to bless God for strength of heart as well as force of limb, since if we possess them they are both the bounties of his kindness.