"And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house." — Acts 16:31 (KJV)
If someone asked, "What must I do to be saved?" where would you take them in the Bible?
Many passages answer that question, but few are as direct as Acts 16:31.
In this remarkable account, a terrified jailer asks the most important question a human being can ask. Paul and Silas respond with one of the clearest Gospel statements in all of Scripture.
Their answer is striking not only because of what it includes, but also because of what it does not include.
The Philippian jailer had just witnessed a miracle.
An earthquake had shaken the prison. The doors were opened. The prisoners remained. Realizing that God was at work, he fell before Paul and Silas and asked:
"Sirs, what must I do to be saved?" (Acts 16:30)
Notice the wording.
Not: How can I begin a process? How can I prove my commitment? How can I earn eternal life?
He asks a straightforward question.
What must I do to be saved?
Paul and Silas immediately respond:
"Believe on the Lord Jesus Christ, and thou shalt be saved."
This is one of the clearest salvation verses in the entire Bible.
The answer is not: be baptized, turn from all your sins, persevere until death, promise lifelong obedience, surrender every area of your life, join a church, or perform good works.
Instead, they give a single condition:
Believe on the Lord Jesus Christ.
This is an important question.
If works are required for salvation, this was the perfect opportunity to say so.
The jailer asked directly what he must do. Paul gave a direct answer.
If repentance from sins, surrender, perseverance, or works were necessary conditions for receiving eternal life, this would have been the ideal moment to mention them.
Yet Paul simply says:
Believe.
The simplicity of the answer is intentional. Salvation is received by faith.
To believe means to be persuaded that something is true.
In the context of the Gospel, it means trusting Jesus Christ as the One who died for our sins and rose again.
Faith is not a work. Faith is not a promise to perform. Faith is reliance upon another.
The jailer was not saved because of what he could do for Christ. He was saved by trusting what Christ had already done for him.
Notice the certainty.
Paul does not say: you might be saved, you could be saved, or you have a chance of being saved.
He says:
"Thou shalt be saved."
The promise is definite.
The certainty rests not in the strength of the believer but in the reliability of Christ.
The Gospel is good news precisely because salvation depends upon Him.
Some mistakenly assume this means entire families are automatically saved when one member believes.
The context shows otherwise. Paul and Silas proceeded to preach the Word to the entire household.
Each individual still needed to believe.
The promise is available to all, but faith is personal.
No one is saved by another person's belief.
The simplicity of Acts 16:31 is consistent throughout Scripture.
Jesus said, "He that believeth on me hath everlasting life" (John 6:47).
Jesus also promised that the believer "shall not come into condemnation" and is passed from death unto life (John 5:24).
Paul wrote, "to him that worketh not, but believeth" (Romans 4:5).
The pattern is unmistakable.
The consistent requirement is faith. The consistent result is life.
Many systems add conditions beyond faith.
Some add perseverance. Some add surrender. Some add commitment. Some add evidence.
Yet Acts 16:31 stands as a direct answer to a direct question.
What must I do to be saved?
Believe on the Lord Jesus Christ.
That answer leaves no room for earning salvation. The focus remains entirely upon Christ.
One reason people struggle with Acts 16:31 is because it seems too simple.
Surely there must be more.
Yet that is exactly the point.
Salvation is not complicated because Christ has already done the work.
The sinner receives the gift through faith.
The work belongs to Christ. The believing belongs to us.
Acts 16:31 contains one of the clearest Gospel invitations in the Bible.
The jailer asked:
"What must I do to be saved?"
Paul answered:
"Believe on the Lord Jesus Christ, and thou shalt be saved."
No works. No rituals. No probationary period. No lifelong performance test.
Just faith in Jesus Christ.
The Gospel is simple because Christ did the difficult part.
He paid the price. We receive the gift.