In mathematics, one way to prove that something is true is to assume that it is not true, and then show how that assumption would create a contradiction. A simple example would be to assume that the world is flat. If that assumption is true, then nobody could have ever sailed "around" the world without "falling off". Since we know Magellan sailed around the world and didn't "fall off", then the world must not be flat, which contradicts our assumption that it is flat. I know there is no way to really "prove" that Jesus Christ was the Son of God, and that we must accept it by faith, but consider this argument: Let's assume that Jesus was not the Son of God.
Then how could He have been born to a virgin? How could He have turned water into wine? How could He have healed a blind man? How could He have healed a cripple? How could He have casted out demons? How could He have walked on water? How could He have calmed a storm? How could He have raised Lazarus from the dead? How could He have endured so much pain and humiliation on the Cross? How could He have been raised from the grave? How could He have appeared to so many people after He was dead? How could His disciples be willing to die for Him (especially if they knew He was a fake)? We can continue this argument, but the point is very clear: Jesus MUST have been the Son of God. I believe it. Do you?
Luke 4:14 says, "And devils also came out of many, crying out, and saying, 'Thou art Christ, the Son of God'"
Father, I accept Your Son Jesus as my Savior. Thank you for choosing me to be one of His Followers. In Jesus name, Amen.