When people say that there is no evidence for God, have they ever considered the following?

That as man has been created in the image of God, the humble human heart could be the the instrument that detects the Spirit of God. The proud Human heart is the instrument that cannot detect the Spirit of God. The proof can only be detected by the humble. And as it says in the good book, God resists the proud but gives grace to the humble. This could explain why so many people are sure about the existence of God and why so many people are not.