Justification means that a person is brought into a right relationship with another person even though they may not deserve it.
Jesus Christ has allowed those who put faith in Him to be justified in their relationship with God.
That is to say, Jesus has made it possible for a person to have a right relationship with God even if they do not deserve it.
1Therefore, since we have been justified through faith, wehave peace with God through our Lord Jesus Christ, 2through whom we have gained access by faith into this grace in which we now stand. And werejoice in the hope of the glory of God. 3Not only so, but wealso rejoice in our sufferings, because we know that suffering produces perseverance;
Romans 5:1-3 (NIV)