"God is God"

“When Jonathan Edwards became still and contemplated the great truth that God is God, he saw a majestic Being whose sheer existence implied infinite power; infinite knowledge, and infinite holiness. He goes on to argue like this:

It is most evident by the Works of God, that  his understanding and power are infinite. . . . Being thus infinite in understanding and power; he must also be perfectly holy; for unholiness always argues some defect, some blindness.

Where there is no darkness or delusion, there can be no unholiness. . . . God being infinite in power and knowledge, he must be self-sufficient and all-sufficient; therefore it is impossible that he should be under any temptation to do any thing amiss; for he can have no end in doing it. . . . So God is essentially holy, and nothing is more impossible than that God should do amiss.

For Edwards the infinite power, or absolute sovereignty, of God is the foundation of God’s all-sufficiency. And his all-sufficiency is the fountain of his perfect holiness, and his holiness (as Edwards says in the Religious Affections) comprehends all his moral excellency. So the sovereignty of God for Edwards was utterly crucial to everything else he believed about God.”

– John Piper, the Supremacy of God in Preaching, p. 78