So then what do you think the name of the tree means?
[Gen 3:22-23 KJV]
22 And the LORD God said, Behold, the man is become as one of us, to know good and evil: and now, lest he put forth his hand, and take also of the tree of life, and eat, and live for ever:
23 Therefore the LORD God sent him forth from the garden of Eden, to till the ground from whence he was taken.
notice that God never says Woman has become like Him, knowing good from evil. He says 'ha-adam' = the singular, particular man. Adam. He doesn't say 'mankind' or 'the man and the woman' but He says, Adam.
and notice that God does not say this until Adam changes his dead wife's name to life.
so we have to understand why he does that. why he calls her Eve.
He does that because he hears and believes the gospel in the judgement of the serpent. Adam even having fallen is incredibly wise, and has incredible faith, and recognizes that God is promising to restore humanity from the fall through a promised Seed.
He knows that God has said they will be redeemed. so he calls his dead wife "life"
at this God sheds innocent blood and covers them, and says "behold!!" -- Adam has become like one of "The Us"
which one?
Adam has become like Christ, declaring the dead to be alive. Adam had taken death upon himself for the sake of his bride, and Adam saw that God would do what he could not, because Adam had chosen death in vanity, but God would bear death in righteousness for the sake of the unrighteous. He would be bruised in the heal, but He would crush the head of the murderer.
so Adam saw how that this is to the glory of God. he learned goodness
from evil: he became humbled, and believing, knowing the righteousness that is looking to God for mercy. he didn't gain that from committing sin, but from faith.
what he gained from transgression, from eating the fruit of the forbidden tree, was shame & death: experiential knowledge of sin, firsthand knowledge of the effect of its poison, and its consequences.
that doesn't mean Adam was naive before he sinned and by sinning he gained wisdom. it means he didn't just have an awareness that disobedience is wrong, but he had for the first time
real knowledge of evil.
it's like how we *know* God hangs the earth on nothing ((Job 26:7)), but we would *really know* it if we were out in orbit or on our way to mars, looking down on it. how we *know* that we will die in these bodies, but we *really know* when we have an heart attack or a stroke or a terrible accident, and we're brought all the way to that doorstep.
Adam had up to that point only *known* good because everything God made was good and Adam only did what was good. he had never *known* evil in that he had never *done* evil.
that's an alien concept to us, who are sinning from infancy, being vain and selfish and covetous and soon learning to lie for our lusts.