Charles H. Spurgeon on Psalms 148:9

Mountains, and all hills. Towering steeps and swelling knolls alike declare their Creator. "All hills" are to be consecrated; we have no longer Ebal and Gerizim, the hill of the curse and the hill of the blessing, but all our Ebals are turned to Gerizims. Tabor and Hermon, Lebanon and Carmel, rejoice in the name of the Lord. The greater and the lesser mounts are one in their adoration. Not only the Alps and the mountains of the Jura thunder out his praise; but our own Cotswolds and Grampians are vocal with songs in his honour. Fruitful trees, and all cedars. Fruit trees and forest trees, trees deciduous or evergreen, are equally full of benevolent design, and alike subserve some purpose of love; therefore for all and by all let the great Designer be praised. There are many species of cedar, but they all reveal the wisdom of their Maker. When kings fell them, that they may make beams for their palaces, they do but confess their obligation to the King of trees, and to the King of kings, whose trees they are. Varieties in the landscape are produced by the rising and falling of the soil, and by the many kinds of trees which adorn the land: let all, and all alike, glorify their one Lord. When the trees clap their hands in the wind, or their leaves rustle in the gentle breath of Zephyr, they do to their best ability sing out unto the Lord.