Book VII, Chapter 13 - goodness and praise of all creation

This is a beautiful, one paragraph meditation and praise on the goodness of creation that needs to be read rather than summarized by me. He quotes what I assume is one of the Psalms. Perhaps some reader could tell me which one?

The final phrases were interesting: “…I realized that, while higher things are certainly better than lower things, all things together are better then the higher things by themselves.” This reminded me strongly of I Corinthians 12, verses, approximately 11-31. Paul was talking about the church not nature; yet, the closeness of the analogy is eerie.