Can You Really Know With a 100 % Certainty That Your Faith Is Genuine?

If anyone says that he will for certain, with an absolute and infallible certainty, have that great gift of perseverance even to the end, unless he shall have learned this by special revelation, let him be anathema. Can you really know with a hundred % certainty that your faith is genuine? Not really. So none of us are really going to come to that that position. In terms of the question of assurance, it wouldn't be that big of a deal. But that's not all that they're rejecting,. as we see from the other explanations here at trent."