No. Saying this doesn't induce a limitation of God or His omnipresence. It's true because God is Infinite Goodness while evil is the absence of good and sin is willful thought, word, or action contrary to the law of God.
Yet, God created this when He created Man and infused him with free will and an evil inclination. So, God is not responsible for His creation? Or did this omniscient God just want to "test" man, knowing due to His omniscience, how he would do?
Lula, you say God is infinite then say he is not, by suggesting He is not in the same place as evil. First, evil is not an entity, it is a behavior. Since God created the conditions for this behavior to arise, He is at least partly responsible for it. Second, you really must stop thinking of God as a being with human-like attributes. It will stunt your spiritual growth.
As to Job, the text is quite clear that the adversary presented himself to the Lord (Job 1:6). God defends Job, but the adversary (a divine prosecutor, if you will, not the Devil)) teases Him. Later in chapter two, God says that the adversary has "incited" Him to destroy Job. (Job 2:3) God then turns Job over to the adversary to have his way with him, except for his life.
You are correct, I think, to not take these stories as literal, yet many do. They are aggadah, not halakah. Aggadah informs us about spiritual, mystical aspects of our relationship with the divine, as opposed to the halakic aspects of Torah which outline our (Jewish) actual life rules. Now, the question is, why did the author of Job present God and the adversary in this way and use Job's life as an exemplar?
Your explication is interesting and one view among many. Job is a very complex book and has been thrashed around by theologians for millenia.
I am more interested in the cosmological questions. To get to these we must try our best to get to the beginning, ground zero, as it were. Now, from a Buddhist perspective this would be impossible as we argue there is no real beginning, but rather a constant process of change. Within western religion, however, there are starting points, like the Big Bang, or the creation stories in Genesis, etc. At such a point, we ask where is God or more to the point, where is God not? The answer must be, God is everywhere, otherwise he is bounded by some sort of parameter. KFC argues, among many, that the world was created "ex nihilo" yet, where does nothing come but from God, thus a part of "the Infinite" as I refer to Him often. God made himself into earth, sky, animating earth to make man and so forth...all aggadah mind you...stories designed to aid us in making sense of our beginnings. As for me, I cannot imagine a possibility of the absence of God. Even in Hell (as Christians understand the place, God must be. As it is a place made by God, of God, for God's purposes.
Now, such a theology has implications for the nature of the Infinite. This is where I ask you and others to stand outside of the ordinary human habit of thinking in anthropomorphic terms. God cannot be a "being" as we understand the term. He is everything. She is everything. It is everything. Gender and beingness are something we add to God, not that God needs.
Be well.