Augustine of Hippo, on Ps 32:17

“Vain is the horse for safety: neither shall he be saved by the abundance of his strength.”

“"A horse is a deceitful thing for safety:" he is deceived, who thinks either that through men he gains salvation received among men, or that by the impetuosity of his own courage he is defended from destruction. "In the abundance of his strength shall he not be saved" [Psalm 33:17].”

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