the soul of man, its worth

Or what shall a man give in exchange for his soul?
Mark 8:37

an excerpt from The Greatness of the Soul, written by John Bunyan (1628-1688)

..for all the world is not worth a soul, not worth a soul in the eye of God and the judgment of the law. And it is from this consideration that good Elihu cautions Job to take heed, "Because there is wrath," says he, "beware lest He take thee away with His stroke: then a great ransom cannot deliver thee. Will He esteem thy riches? no not gold, nor all the forces of strength." Job 36:18-19

Riches and power, what is there more in the world? for money answers all things --that is, all but soul concerns. It can neither be a price for souls while here, nor can that, with all the forces of strength, recover one out of hell fire."