In ancient building practices, the cornerstone was the principal or most important stone placed at the corner of the building. The cornerstone was usually one of the largest, most solid, and the most carefully constructed stones of any in the building. Jesus describes Himself as the Cornerstone that His Church would be built upon...
Sanctification is like the annealing of metal. As believers, we must be “worked” to the glory of God. He bends us incrementally, adds heat under pressure, then gives us time to “cool down”. In the end, each iteration makes us stronger, more resolute in our faith.