who spread out the earth upon the waters,
His love endures forever.
The Psalmist has said that He is God, He is Lord, and that He does Great Things. Then to back these statements up, he has begun to go through, starting from the beginning, and list some evidences that show Godship, Lordship, and Wonder.
We know from reading Genesis that God's creative acts were done through His Word. He spoke, and it was. He spoke time and space into existence. Then He begins to speak matter into existence. In this verse we are reminded that He has brought every square inch of earth and every drop of water into existence. He created a planet that points to Him!
I have talked of the immensity of the universe, but frankly, I still get amazed at the expanses of the ocean. I can remember the first time I saw the ocean, it made me feel so small. It was almost scary thinking of that much water, and its depths.
The World is His, and everything in it. His Love Endures Forever.