Faith absent reason cannot provide an answer for itself–that is, its purpose and relevancy–which means it cannot be considered in any way efficacious.
And the answer to a question cannot be redundant or a contradiction, because that’s not an answer, it’s merely a priggish regurgitation of the question. So when you are asked the reason for your faith, use reason to answer. Otherwise you are nothing more than that kid in middle school who bragged about having a girlfriend in Canada. All claim, no dame.