"The Blind Man Saw the Truth" -It's possible to be blind and still be able to see the truth. Even though a person may not have sight, the eyes of their understanding can still see by faith. When Jesus walked among the Jews, He performed many notable miracles that could not be denied. Yet, the Jews that refused to place faith in Jesus were unmoved in their hearts to believe in Him despite the miracles. It wasn't the truths that Jesus spoke that sent Him to the cross, but it was the miracles that He performed. Notable miracles can be denied by the unbelieving, but the unbelieving can't convince others that do believe in them that they didn't happen. If you are born again, you are a living, breathing miracle of God. People may not believe in Jesus as you do, but they can't convince you that Jesus isn't God's Son because you are living proof that He is.
