It's all gone horribly Pete Tong.
Now, I'm all for characters developing of their own accord during the writing process. It makes the whole experience that bit more interesting if the writer loses a bit of control. But when writing an Old Testament Space Opera, however loosely you base it on the original text, there are certain things you don't want happening, certain aspects of the source material you want to keep.
For instance, when basing a plot thread on the sibling rivalry of Jacob & Esau, you don't want the two characters suddenly turning out to be the wrong brothers. That just makes a total mess of the whole of history...
However, if I can keep my wordcount goal for today, I might keep going anyway and sort it out later.