Charles H. Spurgeon on Psalms 104:17

Where the birds make their nests: as for the stork, the fir trees are her house. So far from being in need, these trees of God afford shelter to others, birds small and great make their nests in the branches. Thus what they receive from the great Lord they endeavour to return to his weaker creatures. How one thing fits into another in this fair creation, each link drawing on its fellow: the rains water the fir trees, and the fir trees become the happy home of birds; thus do the thunder clouds build the sparrow's house, and the descending rain sustains the basis of the stork's nest. Observe, also, how everything has its use —the boughs furnish a home for the birds; and every living thing has its accommodation —the stork finds a house in the pines. Her nest is called a house, because this bird exhibits domestic virtues and maternal love which make her young to be comparable to a family. No doubt this ancient writer had seen storks' nests in fir trees; they appear usually to build on houses and ruins, but there is also evidence that where there are forests they are content with pine trees. Has the reader ever walked through a forest of great trees and felt the awe which strikes the heart in nature's sublime cathedral? Then he will remember to have felt that each bird was holy, since it dwelt amid such sacred solitude. Those who cannot see or hear of God except in Gothic edifices, amid the swell of organs, and the voices of a surpliced choir, will not be able to enter into the feeling which makes the simple, unsophisticated soul hear "the voice of the Lord God walking among the trees."