Other translations use words like "glorious," "majestic," and "to be admired" rather than "excellent" to express the feelings generated by meditating on how God is revealed by the heavens He created! The starry heavens stretched before David showcase the awesome and spectacular majesty of God.
Commenting on verse 1, the Soncino Commentary says that God's majesty is "rehearsed above the heavens." Rehearse can mean "to repeat" or "tell in detail." David tells us that God has invested the heavens with awesome splendor to direct man's mind to ponder the Creator's existence, majesty, and excellence. This thought also implies that He is just as majestic in demonstrating Himself on earth as He is in the heavens. What excellence do we see in earth and heaven? Power, order, beauty, loving providence, wisdom, reason, logic, and vastness of thinking.
David intended this psalm to direct our thinking toward God's greatness and puny man's insignificance. However, that awesome, majestic, glorious God is glorifying Himself in man! He has chosen what the world considers weak and foolish—us—to appreciate and respect His glory, His name.
John W. Ritenbaugh
The Third Commandment (1997)