You've got it half right.
One can deduce God's existence through reason.
One does not need faith to know that He exists.
However, one cannot deduce anything about God or His revealed Word through reason. That's a matter of faith.
I would like to see your syllogism. If it is properly done and you are right then God's existence is proven with a very high degree of certainty and all honest philosophers will be deists at least.
However, one cannot deduce anything about God or His revealed Word through reason. That's a matter of faith.
I agree but would add "direct personal experience" to "faith."
Thanks for your reply.