In the opening chapter of his book The Knowledge of the Holy, A.W. Tozer observed: “What comes into our minds when we think about God is the most important thing about us…. Were we able to extract from any man a complete answer to the question, ‘What comes into your mind when you think about God?’ we might predict with certainty the spiritual future of that man.”
Our thoughts of God are significant. Paul wrote, “But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him” (Heb. 11:6). David wrote: “The fool hath said in his heart, There is no God” (Psalm 14:1).
While the Bible does not set out to prove God’s existence, it provides concrete reasons which lead to the undeniable conclusion He exists. God is expecting us to use our senses and our sense and deduce this. We may not be able to know everything (which is what atheists claim), but (unlike agnostics) we can be certain of enough items to understand God is real. Here are four convincing reasons:
1. THE COSMOLOGICAL REASON: Every cause has an effect, so there must be an uncaused, first cause of all finite beings and things, and this is God. “For every house is builded by some man; but he that built all things is God” (Heb. 3:4). “Because that which may be known of God is manifest in them; for God hath shewed it unto them. 20 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. 1:19-20).
2. THE MORAL REASON: All people have a moral impulse, which calls for justice or reward that is not always experienced in this lifetime. Therefore, an eternal, spiritual world exists, and an eternal, spiritual being controls the rewards and punishments. “And the times of this ignorance God winked at; but now commandeth all men every where to repent: 31 Because he hath appointed a day, in the which he will judge the world in righteousness by that man whom he hath ordained; whereof he hath given assurance unto all men, in that he hath raised him from the dead” (Acts 17:30-31).
3. The ONTOLOGICAL REASON: We can deduce that God is real because mankind has an idea of an infinite, perfect divine being, who has no superior. “Am I a God at hand, saith the LORD, and not a God afar off? 24 Can any hide himself in secret places that I shall not see him? saith the LORD. Do not I fill heaven and earth? saith the LORD” (Jer. 23:23-24).
4. THE TELEOLOGICAL REASON: There is an observable order or design in the universe that cannot be explained by the object itself. Therefore, there is an intelligent being who provided this order, and that Being is God. The law, order and design of the universe is evidence of a divine Creator. “The heavens declare the glory of God; and the firmament sheweth his handywork” (Psalm 19:1; see also Job 12:7-10; Isa. 40:21-26; Rom. 1:20-21). God has a design for you and me, too: to love Him and serve Him (Eccl. 12:13-14).