Jamieson, Fausset, and Brown
In "word" and "breath"—or, "spirit," there may be an allusion to the Son (John 1:1) and Holy Spirit.
Reasons for praise: first, God's truth, faithfulness, and mercy, generally; then, His creative power which all must honor.
Other Jamieson, Fausset, and Brown entries containing Psalms 33:6:
DISCLAIMER: Church of the Great God (CGG) provides these resources to aid the individual in studying the Bible. However, it is up to the individual to "prove all things, and hold fast to that which is good" (I Thessalonians 5:21). The content of these resources does not necessarily reflect the views of CGG. They are provided for information purposes only.