Complete Commentary on the Whole Bible, by Matthew Henry, at sacred-texts.com
(Psa 104:1-9) God's majesty in the heavens, The creation of the sea, and the dry land.
(Psa 104:10-18) His provision for all creatures.
(Psa 104:19-30) The regular course of day and night, and God's sovereign power over all the creatures.
(Psa 104:31-35) A resolution to continue praising God.
Every object we behold calls on us to bless and praise the Lord, who is great. His eternal power and Godhead are clearly shown by the things which he hath made. God is light, and in him is no darkness at all. The Lord Jesus, the Son of his love, is the Light of the world.
When we reflect upon the provision made for all creatures, we should also notice the natural worship they render to God. Yet man, forgetful ungrateful man, enjoys the largest measure of his Creator's kindness. the earth, varying in different lands. Nor let us forget spiritual blessings; the fruitfulness of the church through grace, the bread of everlasting life, the cup of salvation, and the oil of gladness. Does God provide for the inferior creatures, and will he not be a refuge to his people?
We are to praise and magnify God for the constant succession of day and night. And see how those are like to the wild beasts, who wait for the twilight, and have fellowship with the unfruitful works of darkness. Does God listen to the language of mere nature, even in ravenous creatures, and shall he not much more interpret favourably the language of grace in his own people, though weak and broken groanings which cannot be uttered? There is the work of every day, which is to be done in its day, which man must apply to every morning, and which he must continue in till evening; it will be time enough to rest when the night comes, in which no man can work. The psalmist wonders at the works of God. The works of art, the more closely they are looked upon, the more rough they appear; the works of nature appear more fine and exact. They are all made in wisdom, for they all answer the end they were designed to serve. Every spring is an emblem of the resurrection, when a new world rises, as it were, out of the ruins of the old one. But man alone lives beyond death. When the Lord takes away his breath, his soul enters on another state, and his body will be raised, either to glory or to misery. May the Lord send forth his Spirit, and new-create our souls to holiness.
Man's glory is fading; God's glory is everlasting: creatures change, but with the Creator there is no variableness. And if mediation on the glories of creation be so sweet to the soul, what greater glory appears to the enlightened mind, when contemplating the great work of redemption! There alone can a sinner perceive ground of confidence and joy in God. While he with pleasure upholds all, governs all, and rejoices in all his works, let our souls, touched by his grace, meditate on and praise him.