Thy faithfulness is unto all generations: thou hast established the earth, and it abideth.
David is thanking God for His FAITHfulness upon this earth to every generation! Just the fact that the earth is held in space by His mighty hand should make you thank Him! The more we learn about our universe, the more we say, “What a mighty God!” God has given you more than the universe, He’s given you His Son. Have you trusted in Him? “All I have seen teaches me to trust the Creator for all I have not seen.” – Ralph Waldo Emerson