God is the beginning and the end. He therefore experiences all events at once.
To the OP:
If God is the greatest possible good then if God had not created there would be nothing but the greatest possible good.
God being the greatest possible good is a figment of the imagination. God is Holy. Holiness when applied to God refers not only to moral purity but to everything that separates Him from His creation and His creatures. So, His goodness is holy, His love is Holy, His justice is Holy, His wisdom is Holy. This is no mere human goodness. According to Rudolf Otto in the idea of the Holy: An Inquiry Into the Non-Rational Factor in The Idea of the Divine and it’s Relation to the Rational, chapter 2, pp. 5 and 6. Here Otto speaks of the Supra Rational:
Holiness - the holy - is a category of interpretation and valuation peculiar to the sphere of religion. It is, indeed, applied by transference to another sphere - that of ethics - but it is not itself derived from this. While it is complex, it contains quite a different element or ‘moment’, which sets it apart from ‘the Rational’ in the meaning we gave to that word above, and which remains inexpressible - an ineffable - in the sense that it completely eludes apprehension in terms of concepts.
The fact is we have come to use the words holy, sacred in an entirely derivative sense, quite different from that which they ordinarily bore. We generally take ‘holy’ as meaning ‘completely good’; it is the absolute moral attribute, denoting the consummation of moral goodness. But this common usage of the term is inaccurate. It is true that all this moral significance is contained in the word ‘holy’ but it includes in addition - as even we cannot but feel - a clear overplus of meaning, and later or acquired meaning; rather ‘holy’, or at least the equivalent words in Latin and Greek, in Semitic and other ancient languages, denoted first and foremost only this overplus: If the ethical element was present at all, at any rate it was not original and never constituted the whole meaning of the word.
But this ‘holy’ then represents the gradual shaping and filling in with ethical meaning, or what we shall call the ‘schematization’, of what was a unique original feeling response, which can be in itself ethically neutral and claims consideration in its own right. And when this moment or element first emerges and begins its long development, all those long expressions mean beyond all question something quite other than ‘the good’. This is universally agreed upon by contemporary criticism…Accordingly, it is worth while, as we have said, to find a word to stand for this element in isolation, this ‘extra’ in the meaning of ‘holy’ above and beyond the meaning of goodness.
So, the first premise disproves a god but not the Holy God of scripture.