Psalm 118 verse 8-9: "It is better to take refuge in the Lord than to trust in humans. It is better to take refuge in the Lord than to trust in princes."
God is the only thing you can really trust. All other things don't last forever, so their refuge is only temporary. In my opinion, why would you put your faith in something that will fail you in the end?
Every thing on this earth will die. If you trust in people they will mislead you. If you put your faith in objects they will break and crumble. But God will never die or break, He will last forever. So His refuge lasts forever.