God created mankind to have dominion over His creation. The first inhabitants of His creation disobeyed Him, bringing sin and death into the world, separating mankind for God, and imputing their sin to each of us. Because God is Holy, the penalty for our sin is His wrath for eternity. Because God loved us and knew we could not pay the price to remove His wrath toward us, He sent Jesus Christ who was perfect (the Just), to die as payment for our (the unjust) sins so that we could pass from being separated from God (death) to having our fellowship with God restored (life).

After receiving a master's of ministry degree, author Glen Marks has spent nearly four decades in evangelism and discipleship ministry in Air Force Chapel ministries, jail ministry, and the Winston-Salem Rescue Mission. He wrote The Just for the Unjust because people need to know that when they are born into this world, they are spiritually dead because of sin and Jesus Christ paid the price so that their sins would be forgiven and they can have a personal relationship with Jesus Christ for eternity that can begin for them now. His book is perfect for and will benefit the person who does not have a personal relationship with Jesus Christ and is separated from God because of their sins.