Good is a description. A description of the ultimate creator of everything. It is called good because it is effective in creating things. What it creates really is created. If it can create things really, then it is true.
It is good because it is not opposed to itself. It could not create if another equal creator destroyed. It is good because it works. Its singular, and its true.
Time and space are not a substance. Time is a measurement. Space I imagine as an area created from what underlies matter. If you think of Moses parting the Red Sea and as Moses pulled apart his hands the sea, representing eternity, was parted. So that eternity was quickly pulled apart in opposite directions… creating direction, which does not exist in infinity and eternity, and with direction there were now created points of intersection in these new opposite threads which could for the first time in history move in a direction. And as they moved it took time for them to travel. Eventually they stuck together creating mass…
…but anyway. He created angels in heaven too and they rebelled and were sent as punishment to live in the place, or to experience, the place they had damaged with their malice. So evil is the fallen angels opposition to the will of the creator. The creator is good because only he in all of everything can actually do what he says.
And space and time … are like a suction vortex in eternity when two hands are pulled apart very quickly. The little twisty vortexes created are matter and they can now move about in this space, newly created.
In a nutshell.