Psalms 19:2 - Joseph Benson’s Commentary on the Old and New Testaments

Day unto day Or rather, day after day, uttereth speech Hebrew, יביע אמר, jabiang omer, poureth forth the word or discourse, (namely, concerning God,) constantly, abundantly, and forcibly, as a fountain doth water, as the word signifies. It hath, as it were, a tongue to speak the praises of its Maker. Night unto night showeth knowledge A clear and certain knowledge, or discovery of God its author, and his infinite perfections. “The labour of these our instructers,” says Dr. Horne, “knows no intermission, but they continue to lecture us incessantly in the science of divine wisdom. There is one glory of the sun, which shines forth by day; and there are other glories of the moon and of the stars, which become visible by night. And because day and night interchangeably divide the world between them, they are therefore represented as transmitting in succession, each to other, the task enjoined them, like the two parts of a choir, chanting forth alternately the praises of God.” Thus the instruction becomes perpetual. Every day and every night renews or repeats these documents and demonstrations of God's glory: so that he who has neglected them yesterday has an opportunity put into his hands again to- day of profiting by their instruction. And, at the same time, the circumstances of their regular, constant, and beneficial vicissitude, set forth and proclaim aloud the excellence of that wisdom and goodness, which first appointed, and still continues it. How does inanimate nature reproach us with our indolence, inattention, and indevotion!