"Fear not, thou worm Jacob...I will make thee a threshing instrument with teeth." (Isa. 41:14, 15)

Could any two things be in greater contrast than a worm and an instrument with teeth? The worm is delicate, bruised by a stone, crushed beneath the passing wheel; an instrument with teeth can break and not be broken; it can grave its mark upon the rock. And the mighty God can convert the one into the other. He can take a man or a nation, who has all the impotence of the worm, and by the invigoration of His own Spirit, He can endow with strength by which a noble mark is left upon the history of the time.

And so the "worm" may take heart. The mighty God can make us stronger than our circumstances. He can bend them all to our good. In God's strength we can make them all pay tribute to our souls. We can even take hold of a black disappointment, break it open, and extract some jewel of grace. When God gives us wills like iron, we can drive through difficulties as the iron s............