All of us worship something or someone, and that worship is a witness to the watching world around us. Psalm 66 envisions all the earth worshiping God, but that comes through the people of God worshiping Him. Worshiping Him for what He has done in the past, what he is doing in the present (how he is forming us and being with us in the furnace of life and faith), and how he will be with us in the future.