What is faith in Jesus Christ?
Faith is letting go of every other means of saving ourselves and trusting the gospel Scripture actually teaches — that Jesus died, was buried, and rose again for us.
“Now faith is the assurance of things hoped for, the conviction of things not seen.”
This definition is worth reading slowly, because it’s easy to mistake it for wishful thinking. “Assurance” and “conviction” are not tentative words — they describe settled confidence, not crossed fingers. Biblical faith isn’t believing something is true despite no evidence; it’s trusting a person and a set of facts that have already been given real grounding, even though the outcome they promise (eternal life, a future resurrection) hasn’t been seen yet.
“For I delivered to you as of first importance what I also received: that Christ died for our sins in accordance with the Scriptures, that he was buried, that he was raised on the third day in accordance with the Scriptures,”
This is likely one of the earliest Christian creeds, passed down within a couple of decades of the crucifixion itself — Paul is quoting something already fixed and known when he wrote it. Faith isn’t vague spirituality aimed at nothing in particular; it has actual content, and this is the core of it: Christ died for sins, was buried, and was raised. Believing something less than this — even something that sounds spiritual — isn’t the faith Scripture describes.
“I have been crucified with Christ. It is no longer I who live, but Christ who lives in me. And the life I now live in the flesh I live by faith in the Son of God, who loved me and gave himself for me.”
Paul writes about faith here in the most personal terms possible — not “I believe certain facts,” but “I live by faith,” anchored in being personally loved. That’s the difference between faith as a belief system and faith as a relationship: it’s not just agreeing Jesus died for sins in general, but trusting that he did it, specifically, out of love, for you.
Hard questions
How is faith different from wishful thinking?
Wishful thinking hopes something is true with no real basis for the hope. Biblical faith rests on real grounds: a historical death and resurrection, attested by eyewitnesses (1 Corinthians 15:5–8), and a person, Jesus, who backed up his claims with a documented, examined life. Faith isn’t the absence of evidence — it’s trust that goes beyond what can currently be seen, built on evidence that’s already there.
Will God save someone whose faith is weak or wavering?
Yes — because what saves is the object of faith, not the intensity of it. A weak grip on a strong rope still holds; the rope, not the grip, is what matters. Scripture is full of people with wavering, imperfect faith who were genuinely saved — Thomas doubted (John 20:24–29), the disciples repeatedly failed to understand, and Jesus never rejected them for the weakness of their faith, only invited them to trust him more.
If a person has enough faith, will God give them whatever they ask?
Faith isn’t a lever for extracting whatever we want from God — it’s trust in his character, including his wisdom about what’s actually good for us. A loving father doesn’t give a child everything requested, not because his love is deficient but because it’s wise; Scripture describes God the same way. Great faith looks less like demanding specific outcomes and more like trusting God’s goodness even when the answer isn’t the one we asked for.