It is essential that we understand the historical and theological nature behind the story of Job. While the book was likely written by a Jew and for a Jewish audience, none of the characters in the book are ethnic Jews because the nation of Israel did not yet exist.
In this chapter, Solomon remembers that God is trustworthy in all seasons of life. We are urged to look to Him in seasons of difficulty and joy and to live wisely.
Having more of anything – wealth, control, or power – fails to satisfy. Solomon points to the only thing that can bring true satisfaction: enjoying God and trusting Him with every aspect of life.