On the cross, Jesus was identified with everything evil that we have ever done. In return, we were totally forgiven and delivered from the power of evil.
“In Him [Jesus] we have redemption through His blood, the forgiveness of sins, according to the riches of His grace” (Ephesians 1:7). When we have forgiveness of sins, we have redemption; we have been redeemed. Redeem means “to buy back,” or “to ransom.” Through the payment of His blood, given as a sacrifice on our behalf, Jesus bought us back from Satan for God.
In Romans 7, Paul said something that is not always clear to people who are not familiar with the cultural context of his day: “I am carnal, sold under sin” (verse 14). Remember that the phrase “sold under sin” relates to the Roman slave market. Someone being sold as a slave had to stand on a block, and from a post behind him, a spear was extended over his head. So, Paul said, “I am carnal, sold under the spear of my sin, which is extended over my head. I have no options. I’m for sale.”
When a person is a slave, he has no choices. Again, two women may be sold in the same market; the owner makes one a cook, the other a prostitute. The same is true with us as sinners. We may be good, respectable sinners and look down on prostitutes and addicts. But it is the slave owner who determines the slave’s service.
The good news is that Jesus walked into the slave market and said, “I’ll buy her; I’ll buy him. Satan, I’ve paid the price. These are now My son and daughter.” That is redemption, and it comes only through the forgiveness of sins.