Justification is God's act of declaring or making a sinner righteous before God. The concept of justification occurs in many books of both the Old Testament and New Testament. It is a divine act where God declares the sinner to be innocent of his sins. This does not mean that the sinner is now sinless or has stops sinning. This means only that he is "declared" sinless. The sinner is not made righteous in that his soul is changed or that his soul is infused with God's grace, as Roman Catholicism teaches . Instead, justification is a legal act of imputing the righteousness of Christ to the believer.