What does Psalm 19:2 mean?

The revelation of God in nature continues every moment of every day. Every day and every night, like an ever-flowing stream, nature pours out its message about God. The poetic language of this verse suggests that every day delivers a message about the Creator, and every night conveys knowledge about God's glory.

This passage echoes portions of Psalm 8. There, David says he saw God's glory in nature (Psalm 8:1), and described what he saw in nature as God's creative work. He described the heavens, the moon, and the stars as having been set in place as the work of God's fingers (Psalm 8:3). The sight of God's creation made him wonder why God took notice of man and cared for him (Psalm 8:4).

Whether we gaze at the sky by day or by night, we can see the Creator's glory and our finite existence. When the apostle Paul preached at Athens, he proclaimed God as having "made the world and everything in it, being Lord of heaven and earth" (Acts 17:24). He urged his audience, therefore, to turn from the worship of idols and repent (Acts 17:30).