But of course the entire survey was set up to produce the desired result. The selected stories were the safe and familiar ones found in children's Bibles (and are the only ones that most adults are familiar with today).
I wonder what the result would be if the Bible stories were selected at random. What would happen, for example, if the following six stories were selected?
1) God kills every Egyptian firstborn baby.
At midnight the LORD smote all the firstborn in the land of Egypt, from the firstborn of Pharaoh that sat on his throne unto the firstborn of the captive that was in the dungeon; and all the firstborn of cattle .... and there was a great cry in Egypt; for there was not a house where there was not one dead. Exodus 12:29-30
2) God sends fiery serpents to bite and kill his people (for complaining).
And the people spake against God, and against Moses, Wherefore have ye brought us up out of Egypt to die in the wilderness? for there is no bread, neither is there any water; and our soul loatheth this light bread. And the LORD sent fiery serpents among the people, and they bit the people; and much people of Israel died. Numbers 21:5-6
3) Moses commands his soldiers to kill every boy, woman, and female child (except for the virgins).
And Moses was wroth with the officers ... And Moses said unto them, Have ye saved all the women alive? ... Now therefore kill every male among the little ones, and kill every woman that hath known man by lying with him. But all the women children, that have not known a man by lying with him, keep alive for yourselves. Numbers 31:14-18
4) God orders the Israelites to kill every Amalekite man, woman, and child.
Thus saith the LORD of hosts ... go and smite Amalek, and utterly destroy all that they have, and spare them not; but slay both man and woman, infant and suckling, ox and sheep, camel and ass. 1 Samuel 15:2-3
5) David buys a wife with 200 Philistine foreskins.
And Saul said, Thus shall ye say to David, The king desireth not any dowry, but an hundred foreskins of the Philistines, to be avenged of the king's enemies. ... Wherefore David arose and went, he and his men, and slew of the Philistines two hundred men; and David brought their foreskins, and they gave them in full tale to the king, that he might be the king's son in law. And Saul gave him Michal his daughter to wife. 1 Samuel 18:25-27
6) God kills husband and wife for not giving all their money to Peter.
(Or maybe for lying about the amount of money that they had.)
Ananias, with Sapphira his wife, sold a possession, And kept back part of the price, his wife also being privy to it, and brought a certain part, and laid it at the apostles' feet. But Peter said, Ananias, why hath Satan filled thine heart to lie to the Holy Ghost, and to keep back part of the price of the land? ... And Ananias hearing these words fell down, and gave up the ghost: ... And it was about the space of three hours after, when his wife, not knowing what was done, came in. Then Peter said unto her, How is it that ye have agreed together to tempt the Spirit of the Lord? behold, the feet of them which have buried thy husband are at the door, and shall carry thee out. Then fell she down straightway at his feet, and yielded up the ghost. Acts 5:1-10
Would people believe in the literal truth of these stories? Would they still "believe that their personal trust" in the biblical God was "warranted" by them?
Barna should do a survey to find out. (I'll bet the believers would drop from two thirds to two percent.)