The absurdity is by my own opinion that an all powerful god would have resort to such extreme measures to control mankind who he created. Such as drowning all except one family and sending a son to become a blood sacrifice to excuse the sins of those that he created. You may have another definition of what is absurd.
The research is to find evidence that the events in the Bible occurred in historical records other than the Bible.
My Deist god is simply an intelligence that put the creation of the universe in motion, ie the Big Bang, that is beyond human capabilities to understand at least for now. So as such it has no definition what is absurd.
At least you admit that your sense of “absurdity” is a self defined one; a singularity of wit perhaps. For a second, one would have thought that you were proclaiming a mastery of all that which was to be defined as absurd!