He is self defining or revelatory. He is described philosophically. He is the necessary being
However, the only way any of us can be made aware of this self-definition of
your god is through the Judaeo/Christian scriptures. And there you have a myriad of supposed "self-definitions", which differ very widely. You might decide to choose the descriptions which appear more 'evolved' out of this smorgasbord, but that would simply be
your choice (probably espoused by a lot of Christians, but by no means all). There is no way of telling what is God's true 'self-definition' out of all this. 'Revelation'? Other religions claim revelations, too, in all sorts of weird and wonderful ways, which in turn differ from the Judaeo/Christian descriptions.
"He is described philosophically". Well, Aquinas - to whom you seem indebted - had a go at it, deriving his arguments Muslim sources. But all this doesn't get you much further than the position so clearly summarised by bluehillside above (#289). Well, it would be nice to think that 'God' was
the necessary being, but since all the descriptions and arguments for such are so multifarious, contradictory and so lamentably fail in giving adequate explanations for suffering (theodicy), it is not surprising that they are reasonably dismissed as so much woo.