It follows, then, that only one can possess power independently. He must therefore be the supreme, all-prevailing God, while everything besides Him is subdued and overcome.

In that case, neither can possess power unless the other lacks it, since each possesses power only when the other does not. Thus, neither can possess power unless the other lacks it. Yet if each possesses power, that power is inseparable from his very essence. This would mean that each is perpetually both possessed of power and devoid of it, combining two contradictories.

Likewise, suppose it is said that neither can possess power unless the other grants him power, or enables him and refrains from preventing him. This entails that neither possesses power, because of the impossible circular dependence involved. Yet each has been posited as an agent, so two contradictories would coincide. It thus follows that neither possesses power, although the Creator must possess power, and that each lacks power while possessing it.

All this is impossible according to unambiguous reason. Yet it necessarily follows from positing two eternal lords, each necessarily existent in himself, thus demonstrating the impossibility of that supposition.

Whether they are supposed to agree or disagree about the act, their very being eternal, necessarily existent, and possessed of power is impossible. Their both lacking power is likewise impossible, as is the coexistence of power and its absence. Their agreeing to produce a single effect, each independently producing it, is itself impossible. So too is their sharing in its production, with one producing part of it and the other producing another part.

It follows, then, that one of them must be the one who possesses power, or the more powerful, so one of them would prevail