"There he proved them" (Exod. 15:25).

I stood once in the test room of a great steel mill. All around me were little partitions and compartments. Steel had been tested to the limit, and marked with figures that showed its breaking point. Some pieces had been twisted until they broke, and the strength of torsion was marked on them. Some had been stretched to the breaking point and their tensile strength indicated. Some had been compressed to the crushing point, and also marked. The master of the steel mill knew just what these pieces of steel would stand under strain. He knew just what they would bear if placed in the great ship, building, or bridge. He knew this because his testing room revealed it.

It is often so with God's children. God does not want us to be like vases of glass or porcelain. He would have us like these toughened pieces of steel, abl............