Confirming the souls of the disciples, and exhorting them to continue in the faith…
It would seem to be a great hardship to a lump of iron ore, if it were conscious, that it should have to be melted, separated from its accretions, beaten together into a bar of pure metal, then heated again and cooled suddenly, exposed in this way in quick succession to the most rapid and intense changes of temperature, and hammered furiously while these terrible processes are going on. "Why can not I be left in peace," it might say, "in my condition as ore? I am contented with that form of life." Yet it is only by such processes that it can be promoted in quality from the sluggish state of raw metal, compounded with alloy, to steel.
(T. Starr King.)
Parallel VersesKJV: Confirming the souls of the disciples, and exhorting them to continue in the faith, and that we must through much tribulation enter into the kingdom of God.