He may be told:

If His relations to times, to the things that proceed eternally from Him, and to whatever is intrinsically entailed by that are unvarying—as you maintain concerning the celestial sphere’s necessarily proceeding from Him, and whatever you posit as its cause, whether intellects or other things—then whatever necessarily follows from these concomitants must either accompany them inseparably at all times or accompany them in one circumstance but not another.

If it accompanies them necessarily at all times, then nothing could come into being, and there could be no change whatsoever.

If, however, it accompanies them necessarily at one time but not another, then His necessary concomitants stand in varying relations to times and to the events occurring within them, since at this time there arose from His necessary concomitants what did not arise at this time. If His necessary concomitants stand in varying relations to times and events, He must likewise stand in varying relations to times and events. For the things that proceed eternally from Him, and whatever follows from them by intrinsic necessity, stand in the same relation to all times and events as He does. If their relation to times and events differed from His, their condition at certain times and in relation to certain events would differ from His, and they would possess at certain times a particular feature absent at other times.

That amounts to singling out one time rather than another for an event to occur within it,