This verse presents God's existence as a fact that does not need to be proved. However, even apart from the Bible there are certain evidences to prove that there is a God . Everything must be caused by something or someone. The universe could not begin by itself. There is a wonderful design and plan in creation and this means that there must have been someone to design it.
Man is an intelligent being who knows what is right and wrong.
His maker must be an intelligent being who is greater than man in order to create him. God is a spirit . This means that God does not have a body. We cannot see Him. However, God can show Himself to us in a form that we can see.