What is the difference between the Old and New Testament?
The Old Testament tells the story of God’s covenant with Israel up to about 400 BC; the New Testament tells the story of Jesus and the early church starting around 4 BC. Old promises; New fulfillment. One book, one God, one redemption.
"Old" doesn’t mean obsolete or inferior. It means earlier in the same story. The OT lays the foundation — creation, fall, promise, law, prophets — that makes the NT make sense.
The cross marks the hinge. Old Testament sacrifices anticipated Jesus; he fulfilled them. Old Testament temple ritual pointed to him; he is the temple. Old Testament Israel awaited Messiah; he came.
Both Testaments are God’s word and necessary. Marcionism — keep the NT, dump the OT — has been heresy since the second century. Read them as one story climaxing in Christ.
Original BibleDawn answer · reviewed 2026-06. Drafted with AI assistance and reviewed for accuracy.