"Have you read Josh McDowell's books on Christian apologetics?"
Oh, definitely yes. I have the original editions of his "Evidence that Demands a Verdict" and "More Evidence that Demands a Verdict" purchased in the early 70s.
The best thing he ever wrote (or repeated) is the following:
Jesus of Nazereth (called the Christ) is either:
(1) A liar
(2) A lunatic
(3) Lord
This man believes Him to be Lord! God the Son.
1 Peter 3:15 - But sanctify the Lord God in your hearts: and be ready always to give an answer to every man that asketh you a reason of the hope that is in you with meekness and fear: