Closely related to our last study of the two covenants is the issue between Law and Grace. These two are opposites when it comes to salvation. The law says you have to obey in every detail to live; while grace says, believe in Christ and you will live. Consequently, many Christians find it difficult to reconcile the two. Yet both are from God and, therefore, do not contradict each other when seen in the light of the true gospel. It is only when law and grace are correctly understood that law and grace can be reconciled.
There are three main reasons why God gave the law to the fallen human race. The primary reason was to convict us of our sinfulness. This, in turn, will make us realize the need of a Saviour, which is the tutorial function of the law. Secondly, the law points to Christ as the perfect fulfillment of righteousness for our salvation. Through the grace of our Lord Jesus Christ, the demands of the law were fully met on man’s behalf. This is the gospel function of the law. Finally, the law defines the righteousness which we Christians must attain. Through the grace of our Lord Jesus Christ, law-keeping comes within the reach of every believer. Accordingly, the law becomes the standard of Christian living.
Seen in this light, there is really no contradiction between God’s law and His grace. The problem we sinners face is that God’s holy law and our sinful natures are incompatible. This makes salvation through law-keeping impossible. Grace comes in and satisfies the demands of the law in Christ and then gives power to the believer to fulfill its requirements. This study will cover the relationship between law and grace.