Psalms 19:1
1The heavens declare the glory of God. The expanse shows his handiwork.
Wesley: The heavens—they are as a legible book, wherein he that runs may read it. The glory—his eternal power and Godhead, his infinite wisdom and goodness. Firmament—or the expansion, all the vast space from earth to the highest heavens, with all its goodly furniture.
Creation is a witness anyone can read. The sky does not whisper obscurely; it proclaims handiwork so that wonder at the Maker is the fitting first response before the Word is heard.
Calvin: the psalm’s first part celebrates glory in the works; under the heavens as noblest part he includes the whole fabric. He introduces the heavens as witnesses and preachers, attributing speech to the dumb creature to upbraid ingratitude if so clear a testimony is passed over with unheeding ears. The heavens proclaim they were not put together by chance but wonderfully created by the supreme Architect.
Creational preaching that leaves no honest atheism. Splendor is meant to ravish the mind with the Creator’s goodness, wisdom, and power.