The Bible assumes God’s existence and does not seek to prove it. Various philosophical, logical, and scientific arguments offer solid evidence for the existence of a Creator.
Nowhere in the Bible are there arguments seeking to prove God's existence. The fact of His existence is assumed from the very first verse, "In the beginning God created the heavens and the earth" (Genesis 1:1). Instead of proving God's existence, the Bible calls upon people to make a venture of faith toward Him. It is impossible to know God except by faith (Hebrews 11:6).
While the Bible does not directly argue for God's existence, fulfilled prophecy does demonstrate God's existence as well as the divine inspiration of the Bible. The many Old Testament prophecies about the Messiah that Jesus Christ uniquely fulfilled tells us not only that God exists, but that He also controls the future.
Looking beyond the Bible, many logical, philosophical and scientific arguments have been developed that prove God's existence. Whether or not one accepts a proof as conclusive depends on whether or not that person accepts the evidence.
Here are brief introductions to four classic arguments for believing in God. Some arguments are stronger than others, and depending on your background, you may find one more conclusive than the others.
First, there’s the cosmological case, often associated with Thomas Aquinas, that says everything that exists has a cause and so there must be a first cause (God).
Second is the teleological argument, which points to the complexity and order of the universe as evidence of an intelligent designer.
Third, there’s the moral argument, popularized by C. S. Lewis, that points to the existence of objective moral values and duties, which require a moral lawgiver.
Fourth is the ontological argument originated by St. Anselm, which is a philosophical argument that attempts to prove the existence of God through reasoning alone, without relying on empirical evidence.
As we reflect on these arguments, we are invited to consider how they might shape our understanding of God's existence and His role in the world. We are called to recognize the evidence of a Creator in the world around us and to respond by faith to Him, trusting that He is the source of all life, meaning, and purpose. How will we respond to the Creator who has revealed Himself through creation, morality, and reason?