How should the Old Testament be understood by Christians today?
Many people wonder if the Old Testament still matters for Christians, or if it was only for Israel. Scripture teaches that the Old Testament is God’s Word, that it reveals His character and His ways, and that it points forward to Jesus Christ. Christians are not under the Old Covenant as a system of law for righteousness, but the Old Testament remains deeply valuable for faith, wisdom, and understanding the Gospel.
Why people ask this question
Some Christians feel confused when they read Old Testament laws, sacrifices, and cultural practices. Others see hard passages about judgment and wonder how they fit with God’s love. Some are unsure what still applies today, and what was specific to Israel under the Old Covenant.
The Bible gives clear guidance: the Old Testament is inspired Scripture, it teaches truth, and it prepares us to understand Christ and the Gospel. The key is learning how to read it the way God intended.
The Old Testament is Scripture and is profitable for believers
2 Timothy 3:16–17 (KJV)
All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness: That the man of God may be perfect, throughly furnished unto all good works.
“All scripture” includes the Old Testament. It is not disposable. God uses it to teach doctrine, correct error, and train believers in righteousness. The question is not whether it matters, but how to understand it faithfully.
The Old Testament was written for our learning and hope
Romans 15:4 (KJV)
For whatsoever things were written aforetime were written for our learning, that we through patience and comfort of the scriptures might have hope.
The Old Testament is “for our learning.” It shows us God’s holiness, His mercy, His patience, His justice, and His faithfulness. It also shows the human heart plainly, and it helps believers grow in wisdom and endurance.
The Old Testament contains examples and warnings for believers
1 Corinthians 10:11 (KJV)
Now all these things happened unto them for ensamples: and they are written for our admonition, upon whom the ends of the world are come.
The stories of Israel are not random history. God preserved them as real examples and real warnings. Christians learn from both faith and failure in the Old Testament, so that we can walk wisely today.
Jesus fulfills the Old Testament and is the key to understanding it
Matthew 5:17–18 (KJV)
Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil. For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.
Jesus did not dismiss the Old Testament. He fulfilled it. The law, the sacrifices, the priesthood, and the promises all point forward to Him. When you read the Old Testament with Christ in view, it becomes clearer why it was given and what it was preparing the world to receive.
Christians are not justified by keeping the Old Covenant law
Galatians 3:24–25 (KJV)
Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith. But after that faith is come, we are no longer under a schoolmaster.
The Old Testament law exposes sin and shows God’s standard, but it does not save. It points people to their need for a Savior. Christians are justified by faith, and Christ is the fulfillment and completion of what the law pointed toward.
The Old Testament sacrifices were shadows pointing to the real remedy
Hebrews 10:1 (KJV)
For the law having a shadow of good things to come, and not the very image of the things, can never with those sacrifices which they offered year by year continually make the comers thereunto perfect.
The sacrificial system showed that sin requires atonement, and that bloodshed was involved in dealing with guilt. But those sacrifices could not fully cleanse the conscience. They were a shadow pointing to something greater—fulfilled in Christ.
Key word study (Strong’s Definitions)
Fulfil (Greek: πληρόω)
Strong’s G4137 — plēroō: To fill, to complete, to bring to full measure; to accomplish.
Schoolmaster (Greek: παιδαγωγός)
Strong’s G3807 — paidagōgos: A tutor/guardian; one who leads and trains a child, guiding toward maturity.
What this means
- The Old Testament is inspired Scripture and remains profitable for believers.
- It was written for our learning, comfort, and hope.
- Its examples warn and instruct Christians today.
- Jesus Christ fulfills the law and the prophets, and He is the key to understanding them.
- Christians are not justified by Old Covenant law-keeping, but the law reveals sin and points to Christ.
Gospel connection
Romans 5:8 (KJV)
But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us.
Ephesians 2:8–9 (KJV)
For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: Not of works, lest any man should boast.
The Old Testament helps you see why the Gospel is such good news. It reveals the seriousness of sin, the holiness of God, and the need for atonement. Then it points forward to the Savior who would truly accomplish what the shadows could only picture. Salvation is by grace through faith in Christ, not by works.