Psalm 131:3 Let Israel hope in the LORD From henceforth and for ever.
We hope in the wrong things. We hope in our own strength, our money, our friends. We hope in luck or how smart we are. Israel was learning that the Lord was their only hope. They would decide to trust Him and wait on Him forever.
The hard thing is to believe God when the need starts. Usually we exhaust all of our options before trusting God. That is the opposite of what this verse teaches.