Ver. 12. “Take heed, brethren, lest there be in any of you an evil heart of unbelief in departing from the living God.” For from hardness unbelief ariseth: and as in bodies, the parts that have become callous and hard do not yield to the hands of the physicians, so also souls that are hardened yield not to the word of God. For it is probable besides that some even disbelieved as though the things which had been done were not true.