The fall was all part of the plan.
God, whose name is Jehovah (see Isa 12:2, KJV), did
not plan Adam's and Eve's disobedience, for that would make him just as guilty as they were, knowing full well that they would sin or "miss" the mark of perfect obedience.(Note: the word "sin" is from the Hebrew word
chattath that means to "miss", as in missing when trying to reach a goal, way, mark; the Greek word is
hamartia) When an engineer wants to see if a product he designed will work effectively, what does he do ? He tests it to see if it will do as hopes.
An engineer's testing is to find out if what he created would "meet specifications", which in the case of Adam and Eve did not, for perfect obedience was the goal. However, Adam and Eve were given "free choice", unlike say a mechanical product that is preprogrammed.
If, say a mechanic or auto technician were to knowingly place a defective part on a car, and it subsequently failed, he would be guilty. On the other hand, Adam and Eve were created perfect (Gen 1:31), with no flaws, so that if they failed the test, the fault would be their
own.
They were both informed at Genesis 2:16, 17 of the consequences of death if they violated Jehovah's command to not touch "the tree of knowledge of good and bad", that established Jehovah's right to set moral boundaries for us as humans, who were created with a "built-in" conscience (Gen 1:26), sort of like a second person within ourselves that alerts us when we are about cross a moral boundary that we shouldn't cross, if it is trained right.
Note: the vast majority of mankind has never trained their conscience, for without intimately knowing Jehovah God, their conscience is basically working only "half-way" or just dead, and that is why there is so much moral corruption today, for Jehovah's archenemy Satan pushes the masses of mankind in "the wrong direction", misleading "the entire inhabited earth", Rev 12:9.
It was Satan the Devil (who also has free will) who initiated the rebellion in the garden of Eden some 6,000 years ago, seducing Eve into believing that she would not die if she ate from "the tree of knowledge of good and bad", convincing her that she could be her own "boss", setting her own moral standards as to what is "good and bad", what is right and wrong, with the words: "You certainly will not die. For God knows that in the very day you eat from it, your eyes will be opened and you will be like God, knowing good and bad", even though just seconds earlier, Eve told Satan that she was not even to touch "the tree of knowledge of good and bad" or else die.(Gen 3:1-5)
So, Jehovah placed a
simple test before Adam and Eve, and allowed it to play out, and soon found out that they did not love him as their "heavenly Father", but became "narcisstists", lovers of themselves, which introduced sin into the world, so that Romans 5:12 says: "That is why, just as through one man (Adam) sin entered into the world and death through sin, and so death spread to all men because they had all sinned."
