If Adam and Eve had no knowledge of good and evil, how could they have chosen to obey or disobey if they had no knowledge to knowingly and willfully choose to disobey?
I do not think that it is a fair assumption to make, that they had no knowledge of good and evil before the fall. The text shows that they came to exercise discernment of good and evil, but to say that they had no knowledge of good and evil would suggest that they would think it is OK to kill an animal for food, but that didn't happen until after the fall. It is only when they began to exercise discernment of good and evil that the problems began. When you think about it, all the problems do come down to someone who has chosen to do evil instead of good, and through having convinced themselves one way or another that it is a good thing to do evil. But, what you mean to say is that they did not know good and evil, I do not think that is a reasonable thing to say. The only way that God could be pleased, is if He saw that man was doing good in His creation. In order for a man to do good, he needs to know what is good and what is evil. So the tree of the knowledge of good and evil represents a growing knowledge of good and evil, but he was commanded to not use the produce of that knowledge for his way of life (sustenance and pleasure).
Before the fall Adam and Eve only could live in accordance to God's will.
.. at the risk of offending you (I do not intend to do this), but the meaning of this word "doing God's will" is somewhat different to the meaning of the word "doing to God's pleasure". The difference being, that it is possible to do our own will in a way that brings God's pleasure (and we should assume that it was for Adam too). So as long as we are always making choices that please God (by choosing to do good and not evil), then it doesn't necessarily need to be that we are acting without free will. I do personally know God, and I know that He doesn't command my every action. I do have a lot of free will and usually my choices do not invoke His displeasure. I also know that when He does command me, I need to obey Him, otherwise I cannot escape the conviction of my conscience - and that's what it is all about.
We are supposed to have free will, so that we can love life and praise Him for it, but sometimes He does require something from us, as a loving Father does, and as a loving child does for his loving Father, we do our part.
But after the fall it become possible to choose to disobey and not worship on our own accord
It actually became the de-facto state for all who graduate to the age of responsibility (Romans 7:9, Romans 6:16-22), because we all get lured away by our desires and encouraged by the fallen world to go astray from the pure nature we are born with (James 1:14-15).
The Devil did not want to worship like many humans these days so he was kicked out of Heaven.
He started to question the equality between God and himself. He questioned God's authority.
Isaiah 14:12-14
12 How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down to the ground, which didst weaken the nations!
13 For thou hast said in thine heart, I will ascend into heaven, I will exalt my throne above the stars of God: I will sit also upon the mount of the congregation, in the sides of the north:
14 I will ascend above the heights of the clouds; I will be like the most High
I actually do agree in large part with what you have said here, but I do not read this scripture to refer as mythology does, to a created angel called "Lucifer". Rather, in this scripture, the phrase "Lucifer" is referring to a human, the king of Babylon.
It is generally understood that the title "satan" means "the opposer", and is used to refer to any persons (beings) who oppose God. Jesus spoke to St. Peter, addressing him as Satan when he tempted Jesus by his own heart's desire.
I would caution you to be careful about believing popular lore about angels and the rebellion in heaven, because there is very little written in the scriptures to support that idea. The majority of what we learn about them has to come from experience with them (Ephesians 6:12).
