Does God exist?
The Bible does not set out to prove that God exists; it starts from it. It says God has made Himself known through creation, through the conscience in every person and most clearly through Jesus Christ, and that those who sincerely seek Him will find Him.
Whether God exists is one of the oldest questions people ask, and the answer shapes everything else: where we came from, whether life has a purpose and what is truly right and wrong.
The Bible never opens with an argument for God. Its first sentence simply states that in the beginning God created the heavens and the earth (Genesis 1:1). Yet it says a great deal about how God makes Himself known: through the world He made, through conscience and above all through His Son.
Creation points to a Creator
To the chief Musician, A Psalm of David. The heavens declare the glory of God; and the firmament showeth his handiwork.
Ps 19:1 · King James Version (1769)
Psalm 19 moves from the sky to God’s law: its first half praises God as Creator, its second half praises His written word. Matthew Henry comments that “the heavens so declare the glory of God, and proclaim his wisdom, power, and goodness, that all ungodly men are left without excuse.” The psalm does not belittle what nature teaches, but it shows that God’s word reveals far more.
Paul makes the same point in his letter to the Romans:
For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, even his eternal power and Godhead; so that they are without excuse:
Rom 1:20 · King James Version (1769)
Creation shows two things about God that cannot be seen directly: His eternal power and His divine nature. William MacDonald puts the argument simply: there is no creation without a Creator, just as a work of art requires an artist. Paul’s conclusion is that people are without excuse. They are not guilty for lacking information, but for turning away from the light they had.
John MacArthur draws an important line here. The witness of creation is constant and clear, but it cannot by itself bring a sinner to God. It makes people accountable, while salvation comes through God’s word.
The witness of conscience
God has also left a witness inside us. Paul writes that people who never had the law of Moses still show the work of the law written in their hearts, and their conscience either accuses or defends them (Romans 2:15). It is the work of the law, not the full law, that is written there: people everywhere know, for example, that parents should be honored and that some things must never be done.
The Teacher of Ecclesiastes says that God has set eternity in the human heart (Ecclesiastes 3:11). Older translations say “the world,” but the Hebrew word means eternity. God made people for His eternal purpose, so nothing in this passing world fully satisfies them. The same verse adds that we cannot grasp all that God does from beginning to end.
Why, then, do some people deny God? A psalm gives a blunt answer:
To the chief Musician, A Psalm of David. The fool hath said in his heart, There is no God. They are corrupt, they have done abominable works, there is none that doeth good.
Ps 14:1 · King James Version (1769)
The fool of this psalm is not someone with honest questions or little education. In the Old Testament the word is a moral judgment, not a comment on intelligence. The New Geneva Study Bible explains that this fool denies less God’s existence than His relevance: he lives as if God plays no part in his life, a stance often called practical atheism. Paul quotes the following lines of this psalm when he shows that all have sinned (Romans 3:10–12), and he says that people hold down the truth they already know (Romans 1:18).
At the same time, the Bible is patient with honest doubt. When Thomas refused to believe that Jesus had risen, Jesus came to him and kindly invited him to touch His wounds (John 20:27).