How do we know God exists?
- Apologist Birendra Subba
- 13,760 views
- February 22, 2026
Short Answer
There are strong reasons to believe God exists: the universe had a beginning and a cause, it is finely tuned for life, objective moral values point to a moral Lawgiver, and human beings universally sense the transcendent. Scripture adds that God reveals himself in creation, in conscience, and supremely in Jesus Christ.
Read the full explanation below for Scripture, theology, and practical application.
Detailed Answer
A thorough biblical explanation
Several classic arguments point toward God. The cosmological argument observes that whatever begins to exist has a cause; since the universe began to exist, it has a cause beyond itself. The teleological (design) argument notes the remarkable fine-tuning of the universe for life. The moral argument reasons that objective right and wrong require a transcendent moral Lawgiver.
Beyond arguments, people across all cultures and ages have an awareness of the divine. The Bible says this is because God has made himself known in what he has created, so that his existence is evident (Romans 1:19-20).
Christianity claims that God has not only left clues but has personally entered history in Jesus Christ, the clearest revelation of who God is (Hebrews 1:1-3).
Biblical Basis
Primary Scripture references
| Scripture Reference | Translation |
|---|---|
| Psalm 19:1-4 | ESV |
| Romans 1:19-20 | ESV |
| Acts 17:24-28 | ESV |
Key passages supporting this answer
Theological Explanation
How this fits into Christian doctrine
Theologians distinguish general revelation (God known through creation and conscience) from special revelation (God known through Scripture and Christ). Both testify that God is.
Arguments can show that belief in God is reasonable, but saving knowledge of God comes through his self-revelation in Christ and the work of the Spirit.
Common Misunderstandings
Errors to avoid when teaching or discussing this topic
- 1That belief in God is irrational or unscientific — many rigorous philosophical arguments support it.
- 2That arguments alone produce saving faith — they remove obstacles, but trust in God is personal.
Practical Application
How to live this out in faith and ministry
- ✓Use good reasons for faith to engage honest questions with confidence and humility.
- ✓Move beyond merely arguing about God to actually knowing him through Christ.
Further Reading
Books, creeds, and scholarly sources
- William Lane Craig, Reasonable Faith
- Timothy Keller, The Reason for God
Answered by
Apologist Birendra Subba
Apologist, Bible Teacher & Theological Educator
Related Questions
Continue exploring this topic
Who is Jesus Christ?
Jesus Christ is the eternal Son of God who became man — fully God and fully human in one person. He lived a sinless life, died for sinners, rose bodily from the dead, and is the only Savior and Lord of all.
Is the Bible reliable?
Yes. The Bible is supported by an exceptional manuscript record, internal consistency across many authors and centuries, archaeological corroboration, and fulfilled prophecy. While faith is involved, there are strong historical and rational grounds for trusting Scripture.