There is none so blind as he who refuses to see. You can lead a horse to water but you can't force him to drink.
God knows exactly what piece of evidence or proof that it would take for me to believe...yet won't provide that single crucial bit of evidence or proof thus ensuring that I will spend eternity in a lake of fire.
But I'm the asshole in this relationship.
He has supplied proof of who He is. He has revealed the future and He raised not only His son, but thousands of others that came back with Christ. Those that saw them were given physical proof. That you don't believe
them puts you on the same level as the rich man in Hades who asked Abraham to come back and warn his brothers that what the prophets told them was the truth. Abraham's response was, "If they didn't believe the Prophets, they won't believe me."
Faith is the key for you. Read His word, and with no proof, take it on faith. Trust it without proof. Read a passage and then think about it. Meditate on it. I guarantee you, you will know begin to know Him and believe. He'll reveal Himself to you and you will have no doubt.
He wants your heart. Not your mind.