'Muzzle' in the Bible

You shall not muzzle the ox when he treads out [the grain].

For it is written in the law of Moses, "You shall not muzzle an ox while it treads out the grain." Is it for the oxen that God cares,

For the Scripture says, "You shall not muzzle the ox when it treads out the grain." And, "The laborer is worthy of his wages."