We have seen that this Psalm focuses on who should praise God. After moving from what is in heaven, to discussing what is in the sky, we now focus on the earth itself. The awesomeness of creation is truly a wonderful way in which God has revealed Himself to mankind. However, this creation is even to praise God although some may not be God’s creation but man’s creation. What, man’s creation? That’s right. The sea monsters are probably a reference to sea creatures of mythology the Canaanites made into their false gods. Both God’s creation and those that their neighbors believed to be gods are called on to praise God.
 Fire, and hail; snow, and vapour; stormy wind fulfilling his word:  Mountains, and all hills; fruitful trees, and all cedars:  Beasts, and all cattle; creeping things, and flying fowl:
The elements of nature (verse 8) perform at God’s command. The Psalmist is probably thinking about the Genesis creation account in these verses (see Genesis 1). Interestingly, we read in Romans 1:20, “For the invisible things of Him from the creation of the world are clearly seen, being understood by the things that are made, even His eternal power and Godhead; so that they are without excuse.” Thus, even the creative handiwork of God gives evidence that He is real. How much more should mankind testify of who He is and what He has done.