How Can I Know God Is Real? Biblical Evidence for God’s Existence

The Question That Changes Everything

Every worldview attempts to answer life’s greatest questions.

Why am I here?

Where did everything come from?

Does my life have meaning?

Why does evil exist?

What happens after I die?

Our culture increasingly tells us to create our own truth. We are encouraged to follow our hearts, define our own morality, and determine our own purpose.

The Bible offers something radically different.

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Rather than encouraging us to invent truth, God calls us to discover the truth He has already revealed.

That leads us to perhaps the most important question any person will ever ask:

How can I know God is real?

If there is no God, then life has no ultimate purpose, morality becomes subjective, and death has the final word.

But if God exists, then everything changes.

Our lives have meaning.

Our choices have eternal significance.

And every one of us is accountable to the God who created us.

Fortunately, God has not left humanity guessing.

The Bible teaches that He has graciously revealed Himself in multiple ways.


God Reveals Himself Through Creation

The opening words of Scripture establish the foundation for everything else.

In the beginning God created the heavens and the earth. (Genesis 1:1)

The Bible does not begin by attempting to prove God’s existence.

Instead, it presents God as the eternal Creator from whom everything else derives its existence.

Throughout Scripture, creation itself is presented as a continual testimony to its Maker.

David wrote:

The heavens are telling of the glory of God;
And the expanse is declaring the work of His hands.
Day to day pours forth speech,
And night to night reveals knowledge.
There is no speech, nor are there words;
Their voice is not heard.
Their line has gone out through all the earth,
And their utterances to the end of the world.
In them He has placed a tent for the sun, (Psalm 19:1–4.)

The heavens are not merely beautiful.

They proclaim.

The skies declare.

Every sunrise reminds us that God is faithful.

Every mountain displays His power.

Every ocean reflects His greatness.

Every newborn child reminds us of His creative wisdom.

The Apostle Paul expands this truth when he writes:

because that which is known about God is evident within them; for God made it evident to them. For since the creation of the world His invisible attributes, both His eternal power and divine nature, have been clearly seen, being understood through what has been made, so that they are without excuse. (Romans 1:19–20.)

Creation is not the Gospel.

It cannot tell us how sinners are forgiven.

But creation does testify that there is a Creator possessing eternal power and divine nature.

God has not hidden Himself.

He has left evidence of His existence all around us.


Creation Is a Signpost

Imagine walking through a remote forest and discovering a beautifully constructed cabin.

Inside are books, furniture, photographs, and a warm fire burning in the fireplace.

No reasonable person would conclude that everything assembled itself.

Every building points to a builder.

Every painting points to a painter.

Every novel points to an author.

Likewise, creation points beyond itself to its Creator.

Christians do not worship creation.

We worship the One who made it.

As the Reformer John Calvin famously described it, creation is “the theater of God’s glory.” The created world is like a grand stage displaying God’s wisdom, power, and goodness. It is meant to direct our attention upward—not toward itself, but toward the God who made it.


God Reveals Himself Within Us

Creation is not God’s only witness.

He has also placed evidence of Himself within every human being.

Scripture teaches that men and women are uniquely created in the image of God.

Then God said, “Let Us make man in Our image, according to Our likeness, so that they will have dominion over the fish of the sea and over the birds of the sky and over the cattle and over all the earth and over every creeping thing that creeps on the earth.” And God created man in His own image, in the image of God He created him; male and female He created them. (Genesis 1:26–27.)

This explains why every human life possesses inherent dignity and value.

It also explains why people across every culture ask remarkably similar questions.

Why am I here?

Why is murder wrong?

Why do I long for justice?

Why does beauty move me?

What happens after death?

King Solomon observed:

He has made everything beautiful in its time. He has also set eternity in their heart, yet so that man will not find out the work which God has done from the beginning even to the end. (Ecclesiastes 3:11.)

God has placed eternity within the human heart.

Deep inside, every person recognizes that this life cannot be the whole story.

People attempt to satisfy that longing through wealth, success, relationships, pleasure, or achievement.

Yet those things never fully satisfy.

The longing remains because we were created for fellowship with God Himself.

Augustine captured this truth beautifully when he wrote:

“Our hearts are restless until they rest in You.”


Our Conscience Points Beyond Ourselves

The Apostle Paul also teaches that God has written His moral law upon the human heart.

For when Gentiles who do not have the Law naturally do the things of the Law, these, not having the Law, are a law to themselves, in that they demonstrate the work of the Law written in their hearts, their conscience bearing witness and their thoughts alternately accusing or else defending them, (Romans 2:14–15.)

Although sin has corrupted humanity, our conscience continues to remind us that certain things are right and others are wrong.

We admire courage.

We condemn injustice.

We celebrate sacrificial love.

We long for justice when evil appears to triumph.

These desires are not accidents.

They point back to the God in whose image we were created.


God Has Spoken Through His Word

Creation tells us there is a Creator.

Our conscience reminds us that we are accountable to Him.

But neither creation nor conscience tells us how sinners can know God personally.

For that, God has graciously given us His Word.

Paul writes:

 All Scripture is God-breathed and profitable for teaching, for reproof, for correction, for training in righteousness, so that the man of God may be equipped, having been thoroughly equipped for every good work.(Insert 2 Timothy 3:16–17.)

The Bible is not merely a collection of human religious ideas.

It is God’s inspired revelation.

It tells us who God is.

Who we are.

Why the world is broken.

And how we can be reconciled to Him.

The writer of Hebrews reminds us:

For the word of God is living and active and sharper than any two-edged sword, and piercing as far as the division of soul and spirit, of both joints and marrow, and able to judge the thoughts and intentions of the heart. And there is no creature hidden from His sight, but all things are uncovered and laid bare to the eyes of Him to whom we have an account to give. (Hebrews 4:12-13.)

God’s Word is living and active.

It does more than provide information.

It transforms hearts.

Peter likewise explains that Scripture ultimately originated with God Himself.

 Know this first of all, that no prophecy of Scripture comes by one’s own interpretation. 21 For no prophecy was ever made by the will of man, but men being moved by the Holy Spirit spoke from God. (2 Peter 1:20–21.)

Because God has spoken, we are not left to guess about life’s greatest questions.


Jesus Christ Is God’s Greatest Revelation

The Bible ultimately points to one Person.

Jesus Christ.

John begins his Gospel by writing:

In the beginning was the Word, and the Word was with God, and the Word was God. He was in the beginning with God. All things came into being through Him, and apart from Him nothing came into being that has come into being. In Him was life, and the life was the Light of men. And the Light shines in the darkness, and the darkness did not overtake it. (John 1:1–5.)

Then he makes one of the most astonishing statements in all of Scripture:

 And the Word became flesh, and dwelt among us, and we beheld His glory, glory as of the only begotten from the Father, full of grace and truth. (John 1:14.)

God did not remain distant.

The eternal Son entered His creation.

Jesus perfectly reveals the Father.

The writer of Hebrews declares:

God, having spoken long ago to the fathers in the prophets in many portions and in many ways, in these last days spoke to us in His Son, whom He appointed heir of all things, through whom also He made the [c]worlds, who is the radiance of His glory and the exact representation of His nature, and upholds all things by the word of His power; who, having accomplished cleansing for sins, sat down at the right hand of the Majesty on high, (Hebrews 1:1–3.)

If we truly want to know what God is like, we look to Jesus Christ.

His compassion.

His holiness.

His justice.

His mercy.

His truth.

Everything about Jesus reveals the character of God.


The Resurrection Changes Everything

Christianity ultimately rises or falls on one historical event.

The resurrection of Jesus Christ.

Paul summarizes the Gospel:

For I delivered to you as of first importance what I also received, that Christ died for our sins according to the Scriptures, and that He was buried, and that He was raised on the third day according to the Scriptures, and that He appeared to Cephas, then to the twelve. After that He appeared to more than five hundred brothers at one time, most of whom remain until now, but some have fallen asleep. After that, He appeared to James, then to all the apostles, and last of all, as to one untimely born, He appeared to me also. (1 Corinthians 15:3–8.)

Jesus Christ died for our sins.

He was buried.

He rose again on the third day.

He appeared to many eyewitnesses.

The resurrection is God’s public declaration that Jesus is exactly who He claimed to be.

Because Christ lives, there is hope for every sinner who comes to Him in faith.


The Greatest Question Is Not Whether God Exists

After examining creation, conscience, Scripture, and the person of Jesus Christ, the greatest question changes.

It is no longer simply,

“Does God exist?”

The Bible answers that question clearly.

The greater question becomes:

“Will I believe the God who has revealed Himself?”


The Gospel

The Bible teaches that every one of us has sinned against God.

We have all chosen our own way rather than His.

No amount of good works can erase our guilt.

But God, in His great love, sent His Son to accomplish what we never could.

Jesus lived a perfect life.

He died on the cross for sinners.

He rose from the dead.

Now God calls every person everywhere to repent and place their faith in Jesus Christ alone for salvation.

that if you confess with your mouth Jesus as Lord, and believe in your heart that God raised Him from the dead, you will be saved; for with the heart a person believes, leading to righteousness, and with the mouth he confesses, leading to salvation. (Romans 10:9–10.)

because that which is known about God is evident within them; for God made it evident to them. For since the creation of the world His invisible attributes, both His eternal power and divine nature, have been clearly seen, being understood through what has been made, so that they are without excuse. (Romans 10:13.)

If you have never trusted Christ, today is the day to seek Him.

The God who created you has revealed Himself to you.

He now invites you into a relationship with Him through His Son.


Theo Memory Challenge

Memory Verse

Romans 1:20

 For since the creation of the world His invisible attributes, both His eternal power and divine nature, have been clearly seen, being understood through what has been made, so that they are without excuse.

Read it every day this week.

Pray through it.

Memorize it.

Ask God to open your eyes to His glory in creation and His grace in Christ.


Finish The Race Challenge

This week:

  • Read Genesis 1.
  • Read Psalm 19.
  • Read Romans 1.
  • Read John 1.
  • Memorize Romans 1:20.
  • Ask one friend or family member, “How do you know what is true?” Then lovingly share what you’ve learned from God’s Word.