There are many and all kinds of stones in the world. Grinding stone, sharpening stone, Mill stone, and on it goes. These stones are useful but not used by everyone, only some.
But there is a stone that everyone needs called the Chief Cornerstone. the cornerstone is that which holds up the building where the walls intersect. With out it, the walls would fall down.
Jesus Christ is that Chief Cornerstone. The question today is, Do you have that stone? If not, you're in big trouble. Listen carefully to see where you stand with God.