"Trust me, I could totally answer your question and it would blow your mind and totally convert you. I won't, but trust me I could if I cared to."
Seems like the bible says you're not a very good Christian in that case:
1 Peter 3:15
15But in your hearts set apart Christ as Lord. Always be prepared to give an answer to everyone who asks you to give the reason for the hope that you have. But do this with gentleness and respect.