Charles H. Spurgeon on Psalms 19:4

"Their line is gone out through all the earth, and their words to the end of the world." Although the heavenly bodies move in solemn silence, yet in reason's ear they utter precious teachings. They give forth no literal words, but yet their instruction is clear enough to be so described. Horne says that the phrase employed indicates a language of signs, and thus we are told that the heavens speak by their significant actions and operations. Nature's words are like those of the deaf and dumb, but grace tells us plainly of the Father. By their line is probably meant the measure of their domain which, together with their testimony, has gone out to the utmost end of the habitable earth. No man living beneath the copes of heaven dwells beyond the bounds of the diocese of God's Court- preachers; it is easy to escape from the light of ministers, who are as stars in the right hand of the Son of Man; but even then men, with a conscience yet unseared, will find a Nathan to accuse them, a Jonah to warn them, and an Elijah to threaten them in the silent stars of night. To gracious souls the voices of the heavens are more influential far, they feel the sweet influences of the Pleiades, and are drawn towards their Father God by the bright bands of Orion. "In them hath he set a tabernacle for the sun." In the heavens the sun encamps, and marches like a mighty monarch on his glorious way. He has no fixed abode, but as a traveler pitches and removes his tent, a tent which will soon be taken down and rolled together as a scroll. As the royal pavilion stood in the centre of the host, so the sun in his place appears like a king in the midst of attendant stars.