Have you noticed that some people act as if you cannot know truth? For instance, a person may say that he is not sure that an immoral action is really wrong. Or he may claim that everyone is entitled to his own opinion. Many feel that one viewpoint is as good as another. They believe that we cannot be certain as to what is ultimately right or wrong, so no one should say who is right and who is wrong.
But this idea is false. It's a convenient way for people to excuse themselves from responsibility for their actions. When Jesus said, "You shall know the truth and the truth shall make you free" (John 8:32), He showed that we must be right about certain matters. True, we do not know everything. But we can know some things—those things that God expects us to know. We can know truth! And we can know that God exists and that He created the Universe.
But if we can know the truth about God's existence, why are there so many atheists? Why do so many people not embrace God's truth about Christ and Christianity? Answer: Because most people want to live the way they choose—without God's restrictions upon them (read Jeremiah 6:16-17). But there is no excuse for anyone to be an atheist, an evolutionist, or to reject God and live life as if He does not exist. Why? "[B]ecause what may be known of God is manifest in them [plain to them], for God has shown it to them. For since the creation of the world His invisible attributes are clearly seen, being understood by the things that are made, even His eternal power and Godhead, so that they are without excuse" (Romans 1:19-20).
God has given everyone on Earth plenty of evidence to know that He exists and that He created the World. That evidence is seen in the marvelous creation all around us. And it is seen in the only book on Earth that shows itself to have been written by God—the Bible. On the Day of Judgment, no human will be able to claim that God did not give us enough evidence to know He exists.