What the Bible says about Sin, Cost of
(From Forerunner Commentary)
"The kingdom of heaven" represents God's government, including His church, so God deals with church members as this king with his servants. The debt of the king's servant was an enormous sum. A talent was a denomination of money, or weight of silver or gold, equaling three thousand shekels. By Roman calculation, if this talent were of silver, then ten thousand talents would be equivalent to several million of today's dollars. By Jewish calculation, ten thousand talents would equal three times more, probably over ten million dollars. If this talent were of gold, ten thousand talents would amount to about fifty times more than the silver talent! Nevertheless, Jesus uses this amount to show that the debt—sin—was immense and humanly unpayable. To us, and those we touch, the impact of our sins is immeasurable, but Jesus' sacrifice is greater, covering all sins.
Martin G. Collins
Parable of the Unforgiving Servant