Righteousness and Law

Because the New Testament was written in an ancient language that we know only through ancient texts, understanding the precise meaning of Paul’s words requires careful linguistic study — especially of the Greek in which they were written. Theology, which, as we have seen, has already drawn insight from natural science, ethics, and history, now needs help from philology and grammar as well.

Two clusters of words immediately stand out in the passages we are examining: righteous, righteousness, and the righteousness of God on the one hand, and faith, belief, and believe on the other. These terms appear repeatedly in Paul’s teaching and are central to his thought. That alone makes them worth careful and sustained attention.

When we study New Testament language, we must remember that these words come from two very different worlds of thought. They are Greek words, shaped by Greek life, culture, and philosophy, and they draw meaning from the rich body of classical Greek literature. At the same time, the authors who used them were Jews, deeply immersed in the Hebrew Scriptures and shaped by Hebrew ways of thinking. The Septuagint — the Greek translation of the Old Testament — forms a crucial bridge between these worlds, translating Hebrew ideas into Greek language. Any serious study of New Testament terms must therefore consider both their use in classical Greek and their role as Greek equivalents of familiar Hebrew concepts.

The Moral Teaching of Christ

Before turning to what most clearly sets New Testament teaching apart, it is important to look at several elements it shares with the Old Testament — and, to some extent, with other ancient religious writings. These shared ideas matter because they directly shape the conclusions reached in the earlier posts in this series.

Throughout the Four Gospels, Christ repeatedly and emphatically speaks of a Father in heaven: the unseen Creator and Ruler of humanity and of the universe. This idea is not incidental; it shapes and colors everything Christ teaches. 

God is presented as deeply interested in human life, drawing near to save and bless, inviting trust and affection, and offering hope and joy. These same ideas run through the entire New Testament and are strongly present in the Old Testament as well — especially when compared with other religious writings of the same era. What we ourselves infer from the natural world and from the authority of our moral sense is therefore strongly confirmed and powerfully applied to human life by the explicit teaching of the One who launched a religious movement that has profoundly shaped the course of history.

The Christian Documents

Few figures in history have shaped human thought and life as deeply as Jesus of Nazareth. His influence on the spiritual life — and indirectly on the material well being of the world — is so vast that it naturally draws our closest attention. As we have already seen, what humanity most needs is a teacher who can lift the veil hiding the mysterious Source of the universe, of life, and of our moral sense — a teacher who can point the way to forgiveness and moral freedom. No one else even claims to do this. And no spiritual teacher can be meaningfully compared with the one who sparked the great spiritual movement that has shaped and elevated what is best in human life. For this reason, we search eagerly for every trustworthy source of information about the Founder of Christianity.

Because Christ lived many centuries ago, the only sources available to us are written documents. It is to these documents that we now turn.