He that keepeth his mouth keepeth his life - How often have the foolish, headstrong, and wicked, forfeited their lives by the treasonable or blasphemous words they have spoken! The government of the tongue is a rare but useful talent.
But he that openeth wide his lips - He that puts no bounds to his loquacity, speaks on every subject, and gives his judgment and opinion on every matter. It has often been remarked that God has, given us two Eyes, that we may See much; two Ears, that we may Hear much; but has given us but One tongue, and that fenced in with teeth, to indicate that though we hear and see much, we should speak but little.