Kurbera-Voronja, in the Eurasian country of Georgia, is one of the deepest caves yet explored on planet Earth. A team of explorers have probed the dark and scary depths of its caverns to two kilometers—that’s 7,188 feet into the earth! Similar caves, around 400 of them, exist in other parts of the country and across the globe. More caverns are being discovered all the time and new depth records are being set.

The mysteries of creation continue to unfold, changing and adding to our understanding of the universe we live in and causing us to wonder at the matchless creativity of God’s handiwork on earth that we’re called by God to care for and steward (Genesis 1:26–28). The psalmist invites us all to “sing for joy” and “shout aloud” to the Lord because of His greatness (v. 1). As we celebrate Earth Day tomorrow, let’s consider God’s incredible work of creation. All that it contains—whether we’ve yet discovered it or not—is cause for us to bow down in worship to Him (v. 6).

He doesn’t just know the vast, physical places of His creation, but also the intimate depths of our hearts. And not unlike the caverns of Georgia, we will go through dark and perhaps scary seasons in life. Yet knowing that God holds even those times in His powerful yet tender care: In the words of the psalmist, we are His people, the “flock under His care” (v. 7).