Thus says the LORD;
Cursed be the man that trusts in man, and makes flesh his arm, and whose heart departs from the LORD.
All Commentaries on Jeremiah 17:5 Go To Jeremiah 17
Augustine of Hippo
AD 430
But of these matters, all of which are true objects of faith, those only pertain to hope that are embraced in the Lord’s Prayer. For “cursed is the one that trusts in humankind” is the testimony of Holy Scripture. Consequently, this curse attaches also to the person who trusts in himself. Therefore, we ought to ask for nothing that we either hope to do well or hope to obtain as a reward for our good works except from God the Lord.