We know God exists through creation, which “declares the glory of God” (Psalm 19:1; Romans 1:20), through the moral law written on every human heart, through the historical resurrection of Jesus, and through changed lives. Here’s how each line of evidence points to the God of the Bible.
We can know God exists because all people have an inner sense of God (Romans 1:19-25) and because of the evidence found in Scripture and in nature. Sin will cause people to deny their knowledge of God and because of this they are without excuse before Him (Romans 1:18).
Traditional “Proofs” For God’s Existence
- Cosmological: Everything has a cause and the cause of such a great universe can only be God.
- Teleological: Since the universe appears to be designed with a purpose, there must be an intelligent and purposeful God who created it to function this way.
- Ontological: God, is a being “greater than which nothing can be imagined,” and the characteristic of existence must belong to such a being, since it is greater to exist than not to exist.
- Moral: All people have a sense of right and wrong so there must be a God who is the source of this who will someday mete out justice to all people.
- God must enable us to be persuaded or we would never believe in him. We depend on God’s active communication to us in Scripture for our true knowledge of Him (Matthew 11:27).
- Incomprehensibility: Because God is infinite and we are finite, we can never fully or exhaustively understand any single thing about him (Psalms 145:1-3).
- Knowability: We can know God truly, personally, and sufficiently, so we can know him as he is and have abundant and eternal life that comes from this knowledge (John 17:3).
- God’s “name” is equal to all that the Bible and creation tell us about God. God has many names that reflect many true descriptions of his character from Scripture.
Frequently Asked Questions
What are the main arguments for God’s existence?
The classical lines: the universe had a beginning and needs a cause (cosmological), its fine-tuning shows design (teleological), objective morality points to a moral Lawgiver (moral), and the historical case for Jesus’ resurrection anchors it all in verifiable events (1 Corinthians 15:3–8).
Can you prove God exists scientifically?
Science measures the physical universe — it can’t rule on what’s beyond it, any more than a metal detector can find wood. But science’s own findings (a universe with a beginning, fine-tuned constants, information-rich DNA) fit theism strikingly well: “the heavens declare the glory of God” (Psalm 19:1).
If God exists, why doesn’t He just show Himself?
Scripture says He has — in creation (Romans 1:20), in conscience (Romans 2:15), and supremely in Jesus: “Whoever has seen me has seen the Father” (John 14:9). God reveals enough for faith while preserving the freedom to seek Him — and promises that seekers find (Jeremiah 29:13).
Related: Characteristics Of God and Scripture on Faith
*Resources Added From Wayne Grudem, Systematic Theology
The Doctrine of God – Part 1 – Is There Proof Of God’s Existence?
The Doctrine of God – Part 2 – Characteristics of God
The Doctrine of God – Part 3 – What Is The Trinity?
The Doctrine of God – Part 4 – Creation & God’s Providence
Here are other Frequently Asked Questions and how the Bible answers them.
