
Midrash is a traditional Jewish 'creative' commentary on Biblical stories. Its golden period was between 800 and 1200 CE. For example: In the Adam and Eve story, there are precious few details to flesh out the story, as it were. Rabinnical intellectuals of the period created their own speculative stories to fill in the gaps. They did this with virtually every story in the Old Testament. This honored and highly literary commentary came to be known as Midrash and is part and parcel of Jewish religious study.
The books I've listed below are stunning examples of contemporary Midrash, is there is such is a thing. I recommend both very highly.
Modern Poems on the Bible: An Anthology edited by David Curzon and Out of the Garden: Women Writers on the Bible edited by by Celina Spiegel,Christina Buchmann.