'Trying' in the Bible

So I decided to discern the benefit of wisdom and knowledge over foolish behavior and ideas; however, I concluded that even this endeavor is like trying to chase the wind!

I said to myself regarding the sons of men, “God is surely testing them in order for them to see that [by themselves, without God] they are [only] animals.”

The Teacher says: I discovered this while trying to discover the scheme of things, item by item.