New Testament

“Long ago, at many times and in many ways, God spoke to our fathers by the prophets, but in these last days he has spoken to us by his Son.” — Hebrews 1:1–2

The New Testament (27 books) records the fulfillment of Old Testament promises in Jesus Christ and the birth and mission of the church.

The Language of the New Testament

The New Testament was written in koinē (κοινή) Greek — the “common” Greek spoken across the Mediterranean world following Alexander the Great’s conquests. Unlike the classical Greek of Plato and Aristotle, koinē was the language of merchants, soldiers, and ordinary people. God chose this common tongue to deliver His final revelation — a fitting medium for a gospel intended for all nations.

The central term of the New Testament is euangelion (εὐαγγέλιον) — “good news” or “gospel.” In the Roman world, euangelion announced a great victory or the accession of an emperor. The apostles seized this word to proclaim something far greater: the long-awaited King has come, and through His death and resurrection He has accomplished salvation for His people.

Structure

Gospels — Matthew, Mark, Luke, John — the life, death, and resurrection of Jesus
Acts — The history of the early church and the spread of the gospel
Epistles — Letters to churches and individuals (Paul’s letters, General Epistles)
Revelation — The apocalyptic vision of Christ’s return and final victory

The Genres of New Testament Literature

The New Testament contains a rich variety of literary forms, and recognizing genre is essential for faithful interpretation.

The Gospels are theological biographies — not bare chronicles but carefully shaped narratives proclaiming who Jesus is. Each evangelist writes from a distinct perspective: Matthew for a Jewish audience, Mark with urgency and action, Luke with historical precision, John with theological depth.

Acts is historical narrative tracing the Spirit-empowered expansion of the church from Jerusalem to Rome, showing how the risen Christ continues to work through His apostles.

The Epistles are occasional letters — written to real churches facing real problems — that contain doctrinal instruction, ethical exhortation, and pastoral counsel. Paul’s letters alone span the range from systematic theology (Romans) to personal appeal (Philemon).

Revelation belongs to the genre of apocalyptic literature, using vivid symbolism, visions, and numerology to unveil the ultimate triumph of Christ over evil and the consummation of God’s kingdom.

Major Themes

Fulfillment — Jesus is the one to whom all the Old Testament pointed
Gospel — The good news of salvation by grace through faith in Christ
Church — The body of Christ, composed of Jews and Gentiles united in Him
Already / Not Yet — The kingdom has come in Christ but awaits final consummation
Hope — The return of Christ, resurrection of the dead, and new creation

Apostolic Authority

The New Testament writings carry authority because they come from the apostles or their close associates. Jesus promised His apostles that the Holy Spirit would “guide you into all the truth” (John 16:13) and “bring to your remembrance all that I have said to you” (John 14:26).

The apostles understood themselves as bearers of Christ’s own authority: Paul called his letters “a command of the Lord” (1 Corinthians 14:37), and Peter placed Paul’s writings alongside “the other Scriptures” (2 Peter 3:15–16). The early church received the apostolic writings not as mere human opinion but as the Word of God (1 Thessalonians 2:13).

Continuity and Discontinuity with the Old Testament

The relationship between the two Testaments is one of both continuity and discontinuity.

There is continuity in that the same God speaks in both, the same moral law endures, the same plan of redemption unfolds, and the same gospel of grace by faith is proclaimed (Galatians 3:8). Abraham was justified by faith (Genesis 15:6; Romans 4:3), and the saints of old looked forward to the same Christ to whom we look back.

There is discontinuity in that Christ has fulfilled the ceremonial law — the sacrifices, the dietary codes, the temple system — rendering them obsolete in their old form (Hebrews 8:13). The new covenant surpasses the old not by contradicting it but by accomplishing what it anticipated. The shadow gives way to the substance (Colossians 2:17), and what was promised in part is now revealed in full.

As Jesus said, He came not to abolish but to fulfill (Matthew 5:17). The New Testament does not discard the Old but completes it. For a fuller treatment, see Old Testament to New.

“All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness.” — 2 Timothy 3:16