3 “Praise ye the Lord from heaven”. As though he had found things in heaven holding their peace in the praise of the Lord, he exhorts them to arise and praise. Never have things in heaven held their peace in the praises of their Creator, never have things on earth ceased to praise God. But it is manifest that there are certain things which have breath to praise God in that disposition wherein God pleases them. For no one praises anything, save what pleases him. And there are other things which have not breath of life and understanding to praise God, but yet, because they also are good, and duly arranged in their proper order, and form part of the beauty of the universe, which God created, though they themselves with voice and heart praise not God, yet when they are considered by those who have understanding, God is praised in them; and, as God is praised in them, they themselves too in a manner praise God....
Source: The Enarrations, or Expositions, on the Psalms (New Advent)