Bible Verses About Faith
Faith is the foundation of our relationship with God. The Bible defines it, celebrates it, and calls us to grow in it. These verses will deepen your understanding of what it means to walk by faith.
What Faith Is
Scripture's definition of faith is famously compact: "the substance of things hoped for, the evidence of things not seen" (Hebrews 11:1). Faith isn't a leap into the dark — it's a step into what God has already said. These verses sketch the shape of biblical faith: confident expectation, anchored in God's character, expressed through walking rather than just thinking.
“Now faith is the substance of things hoped for, the evidence of things not seen.”
“But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.”
“For we walk by faith, not by sight.”
“For therein is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith.”
How Faith Grows
Faith isn't a static gift you receive once and store on a shelf. Romans 10:17 says it grows by hearing the word of God — meaning ordinary, repeated exposure to Scripture is the soil where faith deepens. Add prayer, community, and obedience, and you have the basic ecosystem in which faith matures from mustard-seed small into something that moves mountains.
“So then faith cometh by hearing, and hearing by the word of God.”
“If ye have faith as a grain of mustard seed, ye shall say unto this mountain, Remove hence to yonder place; and it shall remove; and nothing shall be impossible unto you.”
“And Jesus answering saith unto them, Have faith in God. For verily I say unto you, That whosoever shall say unto this mountain, Be thou removed, and be thou cast into the sea; and shall not doubt in his heart, but shall believe that those things which he saith shall come to pass; he shall have whatsoever he saith.”
“But let him ask in faith, nothing wavering. For he that wavereth is like a wave of the sea driven with the wind and tossed.”
“And all things, whatsoever ye shall ask in prayer, believing, ye shall receive.”
Faith That Saves and Sustains
Paul's letters are emphatic on one point: salvation comes by grace through faith, not by anything we earn. But James balances Paul — saving faith isn't a private intellectual position; it produces a visible life. These verses hold both truths together: the believer is justified by faith alone, and that faith is never alone for long.
“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.”
“I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me.”
“Even so faith, if it hath not works, is dead, being alone.”
“Therefore being justified by faith, we have peace with God through our Lord Jesus Christ.”
“Trust in the Lord with all thine heart; and lean not unto thine own understanding. In all thy ways acknowledge him, and he shall direct thy paths.”
“Whom having not seen, ye love; in whom, though now ye see him not, yet believing, ye rejoice with joy unspeakable and full of glory: Receiving the end of your faith, even the salvation of your souls.”
A Closing Thought
Faith often feels smaller than you wish it were. You wanted a roar; you have a whisper. Jesus' word about mustard-seed faith is good news here — the size of your faith matters less than the size of the God it's pointed at. If you can pray the desperate prayer of Mark 9, "Lord, I believe; help thou my unbelief," you're already in the long line of people Scripture takes seriously. Keep walking. Faith deepens not by feeling more, but by trusting one more time.
Frequently Asked Questions
What is faith according to the Bible?
Hebrews 11:1 gives the clearest definition: "Now faith is the substance of things hoped for, the evidence of things not seen." Faith is a confident trust in what God has promised, grounded in His character rather than in visible circumstances. It is both belief that God is real (Hebrews 11:6) and reliance on Him for daily life. Biblical faith is relational — it's not just believing facts, it's trusting a Person.
How can I grow my faith?
Romans 10:17 says faith comes by hearing the word of God — so daily Scripture is the single most reliable way to grow faith. Add honest prayer (especially in seasons of doubt), community with other believers, and small acts of obedience. Faith muscles, like any muscles, grow under regular use. Don't wait until you feel strong to step out — usually you discover faith by acting on the little you have.
What does "walk by faith, not by sight" mean?
Paul's line in 2 Corinthians 5:7 is shorthand for the entire Christian life. Sight tells you what is currently true in the room. Faith tells you what is ultimately true because God has spoken. Walking by faith means making decisions based on God's promises rather than only what your circumstances seem to allow — not denying reality, but refusing to let it have the final word.
Is faith a gift or something I have to work up?
Ephesians 2:8-9 calls faith "the gift of God," not something we manufacture in ourselves. At the same time, Scripture repeatedly tells us to exercise faith and grow it. Both are true. The capacity to believe is given; the practice of believing is ours. If your faith feels weak today, that's not disqualifying — it's an invitation to ask the Giver for more.
What's the relationship between faith and works?
Paul says we are saved by faith, not works (Ephesians 2:8-9). James says faith without works is dead (James 2:17). They aren't contradicting — they're describing the same coin from two sides. We're saved by faith alone, but real faith always produces a life that looks different. Works don't earn salvation; they evidence it. A faith that never changes how you live wasn't really faith yet.