My, times’ a wastin’. Starting a bit late, aren’t you?
One of the best books I’ve ever seen and which will provide more information than you can use (for one sermon) is Josh McDowell’s “Evidence for Christianity”. Thomas Nelson publishers, cy 2006. ISBN 978-1-4185-0628-5 I bought a “used” copy off Amazon for about half of the listed $17 price. What I received was a never read copy. You’ll not regret getting a copy of this book, IMO, and it is one you will refer to many, many times.
May you and yours enjoy a Blessed Easter.
I do my best work under pressure :-) Always love to read. Will pick it up asap. Found a series of videos and audio on this subject on his site. Best to you and yours also. Thanks!