Charles H. Spurgeon on Psalms 32:9

Bit and bridle (Norw-ntk) The LXX render the first of these two words by calinw, the second by kemw. The word calinos signifies the iron of the common bridle, which is put into the horse's mouth, the bit, or curb. But kemoz was something like a muzzle, which was put upon mischievous horses or mules to keep them from biting. Xenephon says, that it allowed them to breathe, but kept the mouth shut, so that they could not bite. Not knowing the term of art for this contrivance, I call it a muzzle. The verb (brq) is a military term, and signifies to advance, as an enemy, to attack. The "coming near, "therefore, intended here, is a coming near to do mischief. The admonition given by the psalmist to his companions, is to submit to the instruction and guidance graciously promised from heaven, and not to resemble, in a refractory disposition, those ill conditioned colts which are not to be governed by a simple bridle; but, unless their jaws are confined by a muzzle, will attack the rider as he attempts to mount, or the groom as he leads them to the pasture and the stable. Samuel Horsley.