The Devil blinds those who have never experienced saving faith by keeping them from being born again. He also distracts the saved to keep them from successfully serving the Lord. Interestingly, the Devil accomplishes both elements using the same means—encouraging men to continue with their misplaced hopes. Job understood that misplaced hope (Job 31:24-27) was a sin and acknowledged it as such in Job 31:28. Some place their hopes in wealth, others in careers, others in family, others in science, and others in physical well-being, but in the end, all of their hopes will be disappointed. Hope placed in anything other than the Lord Himself, His perfect words, and His work on sinful man’s behalf is sin and will eventually leave one with no hope at all.
A tender heart quickly and readily yields when offered correction; however, as a heart becomes hardened, the times of yielding become fewer and farther apart. During the hardening process, the individual finds the true nature of the heart more difficult to grasp. As the heart further hardens, the individual finds himself involved in further defiance. The mischief may start as seemingly insignificant, but a hardening heart will ultimately lead to greater depths of wickedness, some seemingly unimaginable only a short time ago. Some of the worst sins committed in the Bible by God's people were committed by those who shortly before had displayed a tender heart. Yet, they allowed their hearts to be hardened by the deceitfulness of sin.