What does the Bible say about trusting in God vs man?

Psalm 146 contrasts two types of people: those who trust in the arm of flesh and those who trust in the Lord. David explicitly states not to put trust in princes or human leaders because they ultimately cannot provide lasting help or security. Instead, true happiness is found in those who have the God of Jacob as their help. Jeremiah 17 reinforces this, declaring that cursed is the man who trusts in man, but blessed is the man whose hope is in the Lord. Thus, reliance on God, who is sovereign and eternal, guarantees aid and fulfillment that human beings cannot provide.