When we say God is a spirit, we know what we mean, as well as we do when we say that the pyramids of Egypt are matter. Let us be content, therefore, to believe him to be a spirit, that is, an essence that we know nothing of, in which originally and necessarily reside all energy, all power, all capacity, all activity, all wisdom, all goodness.
John Adams (1856). “The Works of John Adams, Second President of the United States: With a Life of the Author, Notes and Illustrations”, p.388