You say, faith is not knowledge. I think faith is more sure than knowledge. Faith itself is the evidence of what we don't see. We walk by faith and not by sight because the truths we live by are not seen. Our faith can be misplaced, but I think God has made life simple. Trust Jesus for life. And all comes from that.
I do believe in knowledge, God's knowledge, as being more sure than faith. Believers in God and His Son do have knowledge, but as I see it they are unable to correctly draw a line in themselves between that which is by faith and that which is by knowledge [God's, not man's, which causes confusion for anyone depending too heavily on man's knowledge.]. The only Way to God's knowledge is through faith. As we walk the pathway of faith, trusting in Him, what saith it? Here I see the end of our faith through Jesus:
"Looking unto Jesus the author and finisher of our faith; who for the joy that was set before him endured the cross, despising the shame, and is set down at the right hand of the throne of God." Heb 12:2
When our faith is finished/ended... then we will see clearly or face to face: We shall see Him as He is. No more faith, but knowledge. No more type or shadow, but Reality!
Of course we may "know", but where do you suppose we find such knowledge or perhaps better said who is it that would or could give us such knowledge? God alone! But... I suspect that more than a few who claim to already have it have been convinced of it by some man or men. Who heard from God on it?God says "that you may know you have eternal life", how do we go on from that to say we cannot know?
Much love!