Let's consider God's omniscience, or all-knowing awareness. It may generally be assumed by people who believe in God, that God is all-knowing, that nothing is hidden from God and that God knows all things. We can understand this more closely.

In Non-Duality God is understood as the One Infinite Being. There are no beings other than God. What we assume to be a multitude of beings and a vast world of separate shapes and forms is nothing other than the One Infinite Indivisible Being. The apparently separate beings may seem to be close to God or far from God, but truly God is without end and it's not possible to be outside of God. The world appears as a contrast of what is like God and what is unlike God. This contrast of opposites is God's expression of God's Singular Self. God is formless, shapeless, so any expression of God is not complete and accurate as God. Yet there is nothing other than God. God is the complete Whole, the entirety of What Is.

It follows then that God does not know every thing. God does not know 'things'. God does not know division and separation, because these are not real. God's wholeness is never divided; it only appears to be divided. We could say that God is indeed All-Knowing, as God is Pure Knowing of all that is. And all that is is God. God does not know others, because there are no others.

So it would be a mistake to consider that God knows arithmetic, because God does not see a multiplicity as humans imagine it. This may at first seem controversial, but God does not see a division of the Infinite One into many. God knows only infinity. Knowing infinity just means Knowing, not knowing this and that. God's nature is Knowing, or Awareness, or Consciousness. We use these terms to indicate the core nature of intelligent being.

God's Being is the Heart of all seemingly separate beings, and the Heart is the Whole. So resting in this God Knowing or God Consciousness does not mean that all things are known. Rather it is known that there are no things, or to be more accurate, Nothing is known. Knowledge is an addition to the Clear Knowing or Pure Awareness of God. So it's not that one resting in God Consciousness will know how to fix a car engine, how to successfully cook a lasagne, or how to solve a complex mathematical equation. That knowledge is based in the human mind or mental activity. However, resting in Pure Awareness can bring a clarity to the mental activity, which can make the human mind more in tune with the workings of the apparent universe.

So God does not know every thing, but we could say God knows Everything. There are not many things. There is nothing other than Everything. There is nothing other than God.