Augustine of Hippo, on Jer 17:5

“Thus saith the Lord: Cursed be the man that trusteth in man, and maketh flesh his arm, and whose heart departeth from the Lord.”

“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.”

Imported from an open dataset — not yet checked against the printed edition.