Be you not as the horse, or as the mule, which have no understanding: whose mouth must be held in with bit and bridle, else they come not near unto you.
All Commentaries on Psalms 32:9 Go To Psalms 32
Augustine of Hippo
AD 430
9. "Be not ye like unto horse or mule, which have no understanding:" and therefore would govern themselves. But saith the Prophet, "Hold in their jaws with bit and bridle." Do Thou then, O God, unto them "that will not come nigh Thee" (ver. 9), what man doth to horse and mule, that by scourges Thou make them to bear Thy rule.