Paul writes to a church that has been infiltrated by false teachers, and provides a corrective on how a person is justified before God. Besides the fact that it is divine revelation, the letter's enduring relevance is ensured because it is a statement of the core of the gospel, because it defines the place of its teachings in relation to other biblical doctrines, and because it models the manner in which we are to defend the faith against objections and distortions.
