PSALM 104
This psalm differs from the preceding, inasmuch as it neither treats of the special benefits which God bestows upon his Church, nor lifts us up to the hope of the heavenly life, but by presenting to us a lively image of his wisdom, power, and goodness in the creation of the world, and in the order of nature, encourages us to praise him for the manifestation he has made of himself as a father to us in this frail and perishable life. 1
1 "For regularity of composition, richness of imagery, sublimity of sentiment, and elegance and perspicuity of diction, this hymn is perhaps the principal poem in the whole collection of these inspired songs. As there is no allusion in it to the Mosaic ritual, nor any mention of the deliverance of the Israelites from Egypt, it should seem that it was of an earlier age than the Exodus. It consists of parts sung alternately by two companies. The parts are easily distinguished, inasmuch as one Semichorus always speaks of God in the third person, the other addresses him in the second." -- Horsley.