Day to day pours out speech, and night to night reveals knowledge.
David sets before us two mirrors of God's glory: first the heavens themselves with their exquisite order, then the Law in which God made Himself known to His chosen people. From this he moves to praise the Law at length before closing with prayer.
AI summary
Commenting on Psalm 19:1-14
"Day unto day uttereth speech, and night unto night sheweth knowledge." As if one day took up the story where the other left it, and each night passed over the wondrous tale to the next. The original has in it the thought of pouring out or welling over, with speech; as though days and nights were but as a fountain flowing evermore with Jehovah's praise.
The heavens confute atheists who see the effect yet deny the cause, and confute idolaters who ascribe to the lights themselves the glory that those very lights direct us to give to God alone. The creatures declare His glory by showing they must have an eternal, infinitely wise Creator.
AI summary
Commenting on Psalm 19:1-6