You argue against yourself. In another thread you say that eating the fruit gave man the knowledge of good and evil. Now you say that God created that in man.
You were not careful in reading what he said...
After the fall of Adam, Man still had the human nature conscience that God created them with. That was created to know right from wrong which God saw was good.
What I believe he was alluding to (human nature conscious) what we call the human soul .
The human soul was created with the ability to know right and wrong.
Yet the soul when first made alive was not yet aware of such a thing as right and wrong.
Before Adam fell while living in the yet unfallen world Adam simply had no need to discern between right and wrong.
Just the same, once he was fallen, Adam's soul was instantly able to know right from wrong.
Baby eagles do not fly right after hatched. They were born to fly, but were not flying when first made alive.
Likewise, God created the human soul to be able to know right from wrong without needing to discern right from wrong.
Even when told not to eat from the tree the concept of right and wrong was not yet in Adam's frame of reference.
It was to be simply a matter of obedience motivated by love.
Adam in the Garden did not know he had this ability to know right from wrong.
Not until the Lord threw man out of his nest did man had to switch to thinking in terms of "right and wrong."
- Knowing Good and evil.
The soul was created to know right from wrong.
But, created initially without the need to be knowing right from wrong.
In contrast.
Man was not created by God to sin. But, created with a volition that allowed for a choice to sin.
Our sin nature defect is like how human brain cells die when cut off from oxygen and causing brain damage.
The resultant brain damage causes a malfunction in our physical function.
Grace is God's "treatment for the disease" (but, not the cure) for keeping our spiritual brain damage in check.
God's grace-enabling power is given to man by God to enable fallen man to live righteously when he is functioning
in the filling of the Spirit and while thinking with sound doctrine.
But he said to me, “My grace is sufficient for you, for my power is made perfect in weakness.”
Therefore I will boast all the more gladly about my weaknesses, so that Christ’s power may
rest on me." 2 Corinthians 12:9
Grace is not a feeling of unmerited approval God has for us.
Its an actual power to enable us to function in a manner that God approves of.
Grace is God's provision for battle .....
grace and peace .................