Charles H. Spurgeon on Psalms 19:1-4

Though all preachers on earth should grow silent, and every human mouth cease from publishing the glory of God, the heavens above will never cease to declare and proclaim his majesty and glory. They are for ever preaching; for, like an unbroken chain, their message is delivered from day to day and from night to night. At the silence of one herald another takes up his speech. One day, like the other, discloses the same spectacles of his glory, and one night, like the other, the same wonders of his majesty. Though nature be hushed and quiet when the sun in his glory has reached the zenith on the azure sky —though the world keep her silent festival, when the stars shine brightest at night —yet, says the psalmist, they speak; ay, holy silence itself is a speech, provided there be the ear to hear it. —Augustus T. Tholuck.