A Biblical definition of faith is given in Hebrews 1:11, “now faith is the assurance of things hoped for, the conviction of things not seen.”
It is certainly true that Christians feel sure of many things, even though they have not yet come to pass, and that we are convicted of many things that we cannot currently see. Take Christ’s resurrection from the dead for instance. We have not physically seen this event, but we are sure that it happened. For that matter, consider the very existence of God. John 1:18 says plainly enough of humanity, “no one has seen God at any time.” And yet we believe.
So does this mean that Christians have blind faith? After all, you would have to be pretty stupid to believe something without any evidence, right?
Not so fast. There is a big difference between not being able to see something, and not having any evidence for it at all. Did you see George Washington in person? Yet we believe he existed based on historical evidence. Can you see gravity? Yet we believe in gravity because we can see its effects all around us.
Very well, someone might say, but we can prove those things and you cannot prove that there is a God.
Do you believe that other minds exist outside of your own? There is actually no way to prove it. Do you believe that the past actually occurred? It is impossible to prove that the entire universe, including the memories in our brains, did not pop into existence one second ago.
Faith is the conviction of things not seen. But it is also a conviction that is based on reasonable evidence.
Romans 1:20 states, “since the creation of the world His invisible attributes, His eternal power and divine nature, have been clearly seen, being understood through what has been made, so that they are without excuse.” We may not be able to physically see God, but we can see all of the signs that are pointing in His direction. Signs pointing to God are all over our world, in nature, human history, science, philosophy, art, psychology, personal experiences, and the Bible.
Of course, if you do not want a God telling you what to do, there is always a way to convince yourself that He either does not exist, or does not care what you do. John 3:19-20 puts it this way, “this is the judgment, that the Light has come into the world, and men loved the darkness rather than the Light, for their deeds were evil. For everyone who does evil hates the Light, and does not come to the Light for fear that his deeds will be exposed.”
When you point out that the universe is fine-tuned for human life, atheists theorize that there are actually an infinite number of universes, so one of them was bound to be just like ours without a creator making it that way.
When you point out that life could not have arisen from non-life without a creator, they suggest that aliens may have put life on earth, but certainly not God.
When you point out that objective morality is evidence for God’s existence, many admit that they believe murder and rape are not actually objectively wrong, they are merely unpleasant and unhelpful.
When you point out that consciousness is not explainable by physical phenomena, they insist that consciousness is really just an illusion.
Yes, there is always a way to get out of believing in God if you want to. But you will have to be an Olympic level mental gymnast to jump through the necessary hoops. In the meantime, the God who is love patiently offers you His hand.