a·gen·da (-jnd)<quoted text>
Well, it is still incorrect since "agenda" is not the coorect term.
The reason that atheists look for flaws in the Bible is because of claims of Christians of its perfection. If the Bible is perfect then their beliefs are correct. If the Bible is not perfect their beliefs may be wrong. It is a starting point in the search for the truth.
Remember most atheists in the U.S. started as Christians. The first thing they tend to do is to realize that their former belief has all sorts of flaws in it. They realize that those flaws don't mean that there is no god, it is a starting point that allows them to think logically about the existence of god.
n. pl. a·gen·das
1. A list or program of things to be done or considered?