The only problem is, the OT doesn't describe an abstract God.
The OT god is a Pagan god. The pattern in paganism is that gods are both anthropomorphic, as well as embodiments of some concept. In pagan holy texts it's quite ok to slide back and forward between these. Gaia, in Greek mythology, for example both has a human form, as well as actually being the ground you walk on. In paganism, this is unproblematic. Ares both has a human form as well as being the embodiment of anger fuelled rage. As if Ares, both having a human body is able to enter your body and mind somehow. Also, unproblematic for pagans.
It follows that we have every reason to believe that Jehova in OT is described as both as having a human form, as well as having all his unembodied super powers. And that it's ok to slide between these two.
The ancient Greek philosophers found this sort of reasoning abhorrent. They hated it. But nobody else cared back then. Now in our post-scientific world the idea of having more precise definitions for... well... everything is spreading. But even in our world plenty of people are still okey with flimsy definitions for God. So there's really no reason to think that Jews back when the OT was being written and collated would have any problems with it.
But no... it doesn't make any sense. But that's not what we are discussing. We're discussing whether or not an abstract god was the intent by the authors of the OT. If we look at the Pagan pattern the correct answer would be; both. Jehova is both an abstract god as well as an anthropomorphic god. No, you don't need to like it for it to be true.