But he does it in the light of God's final and ultimate act of salvation, which has taken place in the death and resurrection of Christ. Biblical theology is covenant theology. Because it grounds man's salvation on God's justice, it gives an absolutely solid basis for a man's faith. While he may be tempted to think that God's mercy may run out, his own conscience tells him that God will be just. Unrighteousness Unrighteousness or sin means failing to do what is expected as a covenant partner.
Sin is an act of in-fidelity and unfaithfulness to the covenant responsibility.
The Westminster Confession, therefore, is quite right and biblically concrete when it defines sin as any lack of conformity to the law of God. The covenant Is a legally based fellowship, and the law of God merely spells out the terms of that covenant fellowship. The covenant also helps us to understand the gravity of sin. The sinner is a covenant breaker who offers insult to the covenant Maker. He incurs the curse of the covenant, a curse that is so terrible that its weight and intensity can only be seen in the hell which was exhibited in the execution of Christ.