Introduction
According to the Bible, faith is trust in God and in his promises, even when we do not yet see their fulfillment. It is not merely believing that he exists: it is leaning on him and living accordingly. The Bible describes it as a gift that grows over time.
The word “faith” is used on every occasion: faith in the future, faith in oneself, religious faith. In the Bible, it has a more precise and more living meaning. This page starts from the definition given in the letter to the Hebrews, explains the difference between believing and trusting, then presents the best-known Bible verses on faith, with ways to help it grow.
What Is the Biblical Definition of Faith?
The best-known text is in the letter to the Hebrews, a book of the New Testament. It describes faith as an assurance: a quiet certainty that rests on what one hopes for, even without being able to touch it. In other words, faith is not a leap into the void but a step taken by leaning on someone trustworthy.
Hebrews 11:1
"Now faith is assurance of things hoped for, proof of things not seen."
“Now faith is assurance of things hoped for, proof of things not seen.” It gives solidity to what is not yet visible, like an inner proof. Read all of Hebrews 11.
Faith: Believing or Trusting?
The Greek word translated as faith is linked to the idea of trust and faithfulness. Believing that God exists is a beginning, but it is not enough: biblical faith is a relationship. One can believe that a bridge is solid, but faith means putting one’s full weight on it.
The Bible says that drawing near to God requires believing that he exists and that he rewards those who seek him (Hebrews 11:6). In other words, faith is both a conviction and a movement of the heart toward him.
2 Corinthians 5:7
"for we walk by faith, not by sight."
Paul writes: “we walk by faith, not by sight.” The believer moves forward by trusting God even when the path is not entirely clear. Read all of 2 Corinthians 5.
Where Does Faith Come From?
For the Bible, faith is not an effort of will but a response. It is born when one listens to what God says, and it grows when one returns to it. It is also a gift: one does not give it to oneself, one receives it.
Romans 10:17
"So faith comes by hearing, and hearing by the word of God."
“So faith comes by hearing, and hearing by the word of God.” Reading and listening to the Bible therefore nourishes trust. Read all of Romans 10.
Ephesians 2:8-9
"for by grace you have been saved through faith, and that not of yourselves; it is the gift of God, not of works, that no one would boast."
Paul says that we are saved “by grace,” “through faith,” and that this is “the gift of God.” Faith is not a merit one could boast of. Read all of Ephesians 2.
Faith and Doubt: Can You Doubt and Still Believe?
Yes. Doubt is not the opposite of faith; it is often a stage. The Bible shows honest people who tell God their hesitations. Better a faith that asks questions than a faith that pretends. What matters is the direction in which one looks.
Jesus even spoke of a very small faith: a tiny seed can produce great things. He does not ask for immense faith, but for real faith.
Mark 9:24
"Immediately the father of the child cried out with tears, “I believe. Help my unbelief!"
A father cries out: “I believe. Help my unbelief!” He confesses his faith and his doubt in the same breath, and Jesus welcomes him. Read all of Mark 9.
Matthew 17:20
"He said to them, “Because of your unbelief. For most certainly I tell you, if you have faith as a grain of mustard seed, you will tell this mountain, ‘Move from here to there,’ and it will move; and nothing will be impossible for you."
Jesus speaks of faith “as a grain of mustard seed,” the smallest of seeds. It is not the size of faith that matters, but the object on which it rests. Read all of Matthew 17.
Faith and Works: What Is the Difference?
The two ideas are sometimes confused. Paul explains that faith is the means of receiving God’s forgiveness, without having to earn it through one’s efforts. James, another author of the New Testament, stresses that genuine faith shows in life. The two do not oppose each other: one speaks of the root, the other of the fruit.
In the letter of James we read that faith without works is dead (James 2:17). Kind deeds do not replace faith, but they show it.
How Can You Help Your Faith Grow?
Start by reading the Bible, even a few verses a day, since faith comes from hearing. Then get into the habit of talking to God in your own words, as to a friend, including sharing your doubts with him.
Surround yourself with other people who believe too: faith grows more easily in a community than alone. Finally, take action: make a concrete step of trust, such as forgiving, helping someone or praying for a situation. Faith is strengthened by being exercised.
Further reading
Frequently Asked Questions
What is the difference between faith and religion?
Religion refers to the whole set of practices, beliefs and institutions. Faith, in the Bible, is a personal trust in God. One can practice a religion without this trust, and live it with trust.
Can you have faith without proof?
The Bible does not ask us to believe without reason: it relies on testimonies, a history and a coherence. But it recognizes that faith involves a step of trust that proof alone does not replace.
How can you have more faith?
By reading the Bible, praying, spending time with other believers and taking small steps of trust. The Bible says that faith comes from hearing, so listening regularly to the Word of God nourishes it.
Is faith a gift?
Yes, according to the Bible. Paul writes that salvation through faith is “the gift of God.” It is received, then cultivated. It is not reserved for a few people: anyone can ask for it.