And I don't think there's a true before or after. Linear time is an illusion. There always was, and there never was a before.
If you take a bowling ball and roll it. Which side is up? It's all about a moment and subjective preference which and where a certain part of it is up or not. Before and after is just our view of a world we can't fully comprehend.
Put it this way. If God is non-temporal, it means that now, yesterday, next week, are all at the same moment for God. There never was and never will be a now because all is now simultaneous.
But to me, God is not just that, God is all this too. Not just the substrate of existence, but also the result, the being and becoming all in one. That's a "bigger" god than just this thing or that thing. Think of it this way, if God is only something that is not this universe, then God is only that part, half of what all is. But if God is both that substrate of existence and including this world that is the result, then God is whole, omnipresent and omnipotent. The external monotheistic God is not complete. You have to complete the picture by accepting both the canvas and the painting on it, both.