Ok, here is the Scriptural answer:
Ro 3:20 Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the KNOWLEDGE of sin.
Now the above verse plainly tells us that by the LAW is the KNOWLEDGE of sin, or evil. We know that the law also teaches us what is good. So this solidly proves that the LAW is the tree of the knowledge of good and evil. Now watch this verified next.
Ro 7:4 Wherefore, my brethren, ye also are become dead to the law by the body of Christ; that ye should bemarried to another, even to him who is raised from the dead, that we should bring forth fruit unto God.
Ro 7:5 For when we were in the flesh, the motions of sins, which were by the law, did work in our members to bring forth fruit unto death. (The day you EAT of this tree, you will DIE.)
Ro 7:6 But now we are delivered from the law, that being dead wherein we were held; that we should serve innewness of spirit, and not in the oldness of the letter. (THIS SHOWS we were delivered from that old dead tree of Law, to be placed into the tree of life, which is GRACE.)
Ro 7:7 What shall we say then? is the law sin? God forbid. Nay, I had not known sin, but by the law: for I had not known lust, except the law had said, Thou shalt not covet. (THIS Plainly shows that the KNOWLEDGE of sin came by the LAW.)
Ro 7:8 But sin, taking occasion by the commandment, wrought in me all manner of concupiscence. Forwithout the law sin was dead.
Ro 7:9 For I was alive without the law once: but when the commandment came, sin revived, and I died. (the day you eat thereof, you will DIE.)
Man was alive without the law, for without the law, there is no sin. there was only life, until Adam and Eve partook of law.