A difficult question has been raised, "If God was absolutely free to either create or not create the universe, does that mean that prior to creation God did not know if the universe would exist?" Again we are applying to God our dualistic way of thinking. St. Thomas states the following, "Before the world existed it was possible for the world to be, not, indeed, according to a passive power which is matter, but according to the active power of God...." (Summa, Part I, Q. 46, Art. 1, Reply to objection 1) By an act of God's will the possible reality of the universe came into being with time. We cannot say that creation came into being at a particular time because time begins with creation, so "In the beginning God created the heavens and the earth." (Gn1:1) is the only proper expression. The freedom of God remains a deep mystery which many philosophers have tried to explain. To understand it fully we would have to see God's Freedom in relation to his infinite power, wisdom, love and all other attributes which is a tall order for the limited human mind.
For me, the blue sky
suggests the freedom of God. It appears as unmoving, ever present and without
limits against which the clouds (creatures) enjoy a relative freedom. Karl
Barth has well stated, "The divinity of the
freedom of God consists and conforms itself in the fact that in Himself and
in all His works God is One, constant and eternal, and therewith also omnipresent,
omnipotent, eternal, and glorious."
(Google Books: Karl Barth, Church Dogmatics, Vo. 2, Part 1, p. 440)