How does Holy Scripture speak of trusting in man?

Through his inspired Scriptures, God warns us not to “trust in princes, in a son of man, in whom there is no salvation” (Psa 146:3; see Q508), that we may be neither deceived nor disappointed; and through the Prophet Jeremiah: “Cursed is the man who trusts in man, and makes flesh his arm, and whose heart departs from the LORD” (Jer 17:5).