I think Dewdrop said it well.
To clarify, for me, God knows no sin, except through our perception of it. When we “sin,” the cause of it is the belief in sin, in that someone or something has done us wrong or is wrong. The negative consequences of those actions further cut us off from the awareness and perception of only Grace.
The idea of anything less than perfection is the idea of sin. Anything perceived as unjust (imperfect) is then responded to with sin causing a chain reaction. Leading to a human condition where the idea of sin (imperfection) is a fundamental aspect of our perception and thus our decisions. So for me, we are all “dirtied” only by that chain reaction "Adam's" original sin set off, we break the chain when we put an end to it's idea.
Without that idea, “sin,” is recognized ONLY as a “call for Love,” as A Course in Miracles puts it. No sin, no blame, no need for retribution or to forgive, this is how God sees us. When we ask for and receive forgiveness/salvation, we are recognizing that we were never blamed to begin with or not “safe” in God’s Love. So whether it’s ‘forgiveness’ or the recognition of 'only Grace always,’ depends on one’s perception of God/Love.
We here in the physical aspect of creation were designed to experience the building blocks of Love – to learn “The knowledge of good and evil.” Without that, it’s just another ‘day’ in heaven, everything blissfully happy all the time without knowing or caring how or why.
The only motive Love could have would be to create more of itself. By understanding it’s absence (evil) we understand the meaning of it’s presence (good). A good analogy is an adult whose learned responsibility and productivity by remembering the ‘painful’ lessons of childhood. The pain of consequences is not intended to be ‘punishment,’ just the result of “missing the mark” as Nathan mentioned, for the sole (soul) purpose of knowing BETTER
The goal is to recognize the perception of sin/evil as an expression of the absence of Love, not as it's opposite. To do so is to accept the miracle of Love. To do so with singularity is to accept the ability to perform miracles.