How does worry of a Mockingbird, and worry by a Radical Islamist Terrorist Suicide Bomber relate by changing one word?

Excerpt One 

“Sometimes the Bible in the hand of one man is worse than a whisky bottle in the hand of (another)… There are just some kind of men who – who’re so busy worrying about the next world they’ve never learned to live in this one, and you can look down the street and see the results.”
― Harper Lee, To Kill a Mockingbird

Excerpt Two

King Solomon, a revered Prophet of Islam, has this wise advice for you to consider………  

3This is an evil in all that is done under the sun, that there is one fate for all men. Furthermore, the hearts of the sons of men are full of evil and insanity is in their hearts throughout their lives. Afterwards they go to the dead. 4For whoever is joined with all the living, there is hope; surely a live dog is better than a dead lion. 5For the living know they will die; but the dead do not know anything, nor have they any longer a reward, for their memory is forgotten. (Ecclesiastes 9)

Answer to Riddle

Change the word Bible to Koran in Excerpt One, and both types of killers “are so busy worrying about the next world, they never learn to live in this one.”

A Better Answer, In My Opinion 

King Solomon gave this advice regarding an antipodal to this riddle.  HERE

Regards and goodwill blogging.