On the very first questions from the Spirit's Book the Spirits wisely answer these questions:
THE SPIRITS’ BOOK.
BOOK FIRST - CAUSES
CHAPTER I
GOD
1. What is God?
"God is the Supreme Intelligence-First Cause of all things."
2. What is to be understood by infinity?
"That which has neither beginning nor end; the unknown: all that is unknown is infinite."
3. Can it be said that God is infinity?
"An incomplete definition. Poverty of human speech incompetent to define what transcends human intelligence."
God is infinite in His perfections, but "infinity" is an abstraction. To say that God is infinity is to substitute the attribute of a thing for the thing itself, and to define something unknown by reference to some other thing equally unknown.
4. What proof have we of the existence of God?
"The axiom which you apply in all your scientific researches, 'There is no effect without a cause.' Search out the cause of whatever is not the work of man, and reason will furnish the answer to your question."
To assure ourselves of the existence of God. we have only to look abroad on the works of creation. The universe exists, therefore It has a cause. To doubt the existence of God is to doubt that every effect has a cause, and to assume that something can have been made by nothing.