Christ is either a great corner-stone in a great building of believers, or a stumbling stone to everyone else. Why is Christ, the great corner-stone, also a stumbling stone to unbelievers?! How does that work?! Most of what makes a corner-stone in a building, is unseen! Yet, a stumbling stone has to be in the path you walk. In physical size a significantly smaller stone, since it can go unnoticed by the one who stumbles over it!