The Law

like a plumbline - very useful for showing the crookedness of a wall, but powerless to make the wall straight

like a mirror - very useful to showing the smudge spot on the face, but powerless to wash the smudge away

like a headlight on a car - very useful for piercing the darkness to reveal the curves in the road ahead, but powerless to steer the car safely

The Law is useful to showing us our condition and our need for a Savior; but the Law does not save. It condemns.