An Atheist on Evangelism

I am subscribed to  Josh Harris's blog and watched the following video today. 

How pleased the Lord must be with His servant, the man who gave that Bible! I could not help but thinking that should the Lord open Penn's eyes one day, what he will feel when he remembers the man... how he might search out that small Bible, read it, and be forever changed.

10For as the rain and the snow come down from heaven
and do not return there but water the earth,
making it bring forth and sprout,
giving seed to the sower and bread to the eater,
11so shall my word be that goes out from my mouth;
it shall not return to me empty,
but it shall accomplish that which I purpose,
and shall succeed in the thing for which I sent it. 

Isaiah 55