Psalms 32:9 Be ye not as the horse, [or] as the mule, [which] have no understanding: whose mouth must be held in with bit and bridle, lest they come near unto thee.
Proverbs 26:3 A whip for the horse, a bridle for the ass, and a rod for the fool's back.
Revelation 14:20 And the winepress was trodden without the city, and blood came out of the winepress, even unto the horse bridles, by the space of a thousand [and] six hundred furlongs.