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.
Torrey's Topical Textbook—AKJV

James 3:3
Behold, we put bits in the horses' mouths, that they may obey us; and we turn about their whole body.
Torrey's Topical Textbook—AKJV