Psalm 32:9
Be you 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 to you.
Nave's Topical Index—AKJV

Proverbs 26:3
A whip for the horse, a bridle for the ass, and a rod for the fool's back.
Nave's Topical Index—AKJV

Revelation 14:20
And the wine press was trodden without the city, and blood came out of the wine press, even to the horse bridles, by the space of a thousand and six hundred furlongs.
Nave's Topical Index—AKJV