In these verses we have a wonderful picture of the blessedness of the godly, the elements of which consist in four things: satisfaction, represented under the emblem of a feast; joy, represented under the imagery of full draughts from a flowing river of delight; life, pouring from God as a fountain; light, streaming from Him as a source.
I. Satisfaction. "They shall be abundantly satisfied with the fatness of Thy house." Now, I suppose, there is a double metaphor in that. There is an allusion, no doubt, to the festal meal of priests and worshippers in the Temple on the occasion of the peace-offering; and there is also the simpler metaphor of God as the Host at His table, at which we are guests. The plain teaching of the text is that by the might of a calm trust in God the whole mass of a man's desires are filled and satisfied. God, and God alone, is the food of the heart. God, and God alone, will satisfy your need.
II. Notice the next of the elements of blessedness here: joy. "Thou shalt make them drink of the river of Thy pleasures." There may be a possible reference here, couched in the word "pleasures," to the garden of Eden, with the river that watered it parting into four heads; for "Eden" is the singular of the word which is here translated "pleasures" or "delights." The teaching of the text is that the simple act of trusting beneath the shadow of God's wings brings to us an ever-fresh and flowing river of gladness, of which we may drink. All real and profound possession of, and communion with, God in Christ will make us glad glad with a gladness altogether unlike that of the world round about us, far deeper, far quieter, far nobler, the sister and ally of all great things, of all pure life, of all generous and lofty thought.
III. We have the third element of the blessedness of the godly represented under the metaphor of life, pouring from the fountain, which is God. The words are true in regard of the lowest meaning of life, "physical existence;" and they give a wonderful idea of the connection between God and all living creatures. Wherever there is life, there is God. The creature is bound to the Creator by a mystic bond and tie of kinship, by the fact of life. But the text does not refer merely to physical existence, but to something higher than that, namely, to that life of the spirit in communion with God which is the true and proper sense of life, the one, namely, in which the word is almost always used in the Bible.
IV. "In Thy light shall we see light." The reference is to the spiritual gift which belongs to the men who "put their trust beneath the shadow of Thy wings." In communion with Him who is the Light as well as the Life of men, we see a whole universe of glories, realities, and brightnesses. (1) In communion with God, we see light upon all the paths of duty. (2) In the same communion with God, we get light in all seasons of darkness and sorrow. "To the upright there ariseth light in the darkness," and the darkest hours of earthly fortune will be like a Greenland summer night, when the sun scarcely dips below the horizon, and even when it is absent all the heaven is aglow with a calm twilight.
A. Maclaren, A Year's Ministry,2nd series, p. 227.