Ahh, but here I am addressing Fist of the North's beliefs, not some other interpretation or belief.
But to address your statement, how do you know? The Bible does not give statement as to what is and is not metaphor or simile. It is solely personal belief based in either your personal study or your researching of texts others have written on the subject. It may be that the creation account is literal, it may be that it is metaphorical, I do not deny that the account presented in Genesis is not complete enough so as to affirmatively state the nature and method of creation to any absolute other than that God played a role.
From your other post I assume you are Catholic, if this is incorrect you may correct me.
CATECHISM OF THE CATHOLIC CHURCH
PART ONE
THE PROFESSION OF FAITH
SECTION TWO
THE PROFESSION OF THE CHRISTIAN FAITH
CHAPTER ONE
I BELIEVE IN GOD THE FATHER
ARTICLE I
"I BELIEVE IN GOD THE FATHER ALMIGHTY, CREATOR OF HEAVEN AND EARTH"Paragraph 5. Heaven and Earth
325 The Apostles' Creed professes that God is "creator of heaven and earth". The Nicene Creed makes it explicit that this profession includes "all that is, seen and unseen".
326 The Scriptural expression "heaven and earth" means all that exists, creation in its entirety. It also indicates the bond, deep within creation, that both unites heaven and earth and distinguishes the one from the other: "the earth" is the world of men, while "heaven" or "the heavens" can designate both the firmament and God's own "place" - "our Father in heaven" and consequently the "heaven" too which is eschatological glory. Finally, "heaven" refers to the saints and the "place" of the spiritual creatures, the angels, who surround God.186
327 The profession of faith of the Fourth Lateran Council (1215) affirms that God "from the beginning of time made at once (simul) out of nothing both orders of creatures, the spiritual and the corporeal, that is, the angelic and the earthly, and then (deinde) the human creature, who as it were shares in both orders, being composed of spirit and body."187
PART ONE: THE PROFESSION OF FAITH
SECTION TWO I. THE CREEDS
CHAPTER ONE I BELIEVE IN GOD THE FATHER
Article 1 "I BELIEVE IN GOD THE FATHER ALMIGHTY, CREATOR OF HEAVEN AND EARTH"
Paragraph 4. THE CREATOR
IV. THE MYSTERY OF CREATION
God creates by wisdom and love
295 We believe that God created the world according to his wisdom.141 It is not the product of any necessity whatever, nor of blind fate or chance. We believe that it proceeds from God's free will; he wanted to make his creatures share in his being, wisdom and goodness: "For you created all things, and by your will they existed and were created."142 Therefore the Psalmist exclaims: "O LORD, how manifold are your works! In wisdom you have made them all"; and "The LORD is good to all, and his compassion is over all that he has made."143 God creates "out of nothing"
296 We believe that God needs no pre-existent thing or any help in order to create, nor is creation any sort of necessary emanation from the divine substance.144 God creates freely "out of nothing":145
If God had drawn the world from pre-existent matter, what would be so extraordinary in that? A human artisan makes from a given material whatever he wants, while God shows his power by starting from nothing to make all he wants.146
297 Scripture bears witness to faith in creation "out of nothing" as a truth full of promise and hope. Thus the mother of seven sons encourages them for martyrdom:
I do not know how you came into being in my womb. It was not I who gave you life and breath, nor I who set in order the elements within each of you. Therefore the Creator of the world, who shaped the beginning of man and devised the origin of all things, will in his mercy give life and breath back to you again, since you now forget yourselves for the sake of his laws. . . Look at the heaven and the earth and see everything that is in them, and recognize that God did not make them out of things that existed. Thus also mankind comes into being.147
298 Since God could create everything out of nothing, he can also, through the Holy Spirit, give spiritual life to sinners by creating a pure heart in them,148 and bodily life to the dead through the Resurrection. God "gives life to the dead and calls into existence the things that do not exist."149 and since God was able to make light shine in darkness by his Word, he can also give the light of faith to those who do not yet know him.150
God creates an ordered and good world...
310 But why did God not create a world so perfect that no evil could exist in it? With infinite power God could always create something better.174 But with infinite wisdom and goodness God freely willed to create a world "in a state of journeying" towards its ultimate perfection. In God's plan this process of becoming involves the appearance of certain beings and the disappearance of others, the existence of the more perfect alongside the less perfect, both constructive and destructive forces of nature. With physical good there exists also physical evil as long as creation has not reached perfection.175
311 Angels and men, as intelligent and free creatures, have to journey toward their ultimate destinies by their free choice and preferential love. They can therefore go astray. Indeed, they have sinned. Thus has moral evil, incommensurably more harmful than physical evil, entered the world. God is in no way, directly or indirectly, the cause of moral evil.176 He permits it, however, because he respects the freedom of his creatures and, mysteriously, knows how to derive good from it:
For almighty God. . ., because he is supremely good, would never allow any evil whatsoever to exist in his works if he were not so all-powerful and good as to cause good to emerge from evil itself.177
So, we see the Catholic Church has God creating everything ex nihilo, including the Angels, one of whom was Satan. We learn that, according to the Catechism of the Catholic Church, God created evil intentionally. And thus sin is due to God, he created a world where he knew sin would occur.