Nowadays, people think of the creation like a giant machine. God wound it up at the beginning of time and let it go. However, this is not how ancient people understood the world. They thought of it as like a great organism which was moving towards its natural end, which is God. The Church and the scriptures follow this more ancient understanding, and so the Psalmist invokes the entire creation to praise God. The daily movement of the creation is a great song for God.
Make a joyful noise to the Lord, all the earth; break forth into joyous song and sing praises! Sing praises to the Lord with the lyre, with the lyre and the sound of melody! With trumpets and the sound of the horn make a joyful noise before the King, the Lord! Let the sea roar, and all that fills it; the world and those who dwell in it! Let the floods clap their hands; let the hills sing for joy together before the Lord, for he comes to judge the earth. He will judge the world with righteousness, and the peoples with equity.
Christ is risen from the dead,
By death trampling down on death,
And to those in the tomb,
He has granted life!