According to Genesis 2, God sets the first man and woman in a garden with trees whose fruits they may eat, but He bans them from eating from "the tree of the knowledge of good and evil." Why would God do this if it weren't important for humans to not eat from it?
God's decision makes sense when you consider that if humans ate from this tree, they would be breaking their relationship with Him. Since God loves us so much, He wants us to have all the help we can get through His son Jesus Christ. Therefore, He forbids us from eating from the tree of knowledge because it would put us in a position where we could choose sin over holiness or autonomy over obedience.
This doesn't mean that humans were never meant to know good and evil. The Bible says that Satan has been doing everything in his power to prevent humans from knowing God and having life after death. If humans were meant to live forever, then there would be no need for Jesus to die on the cross or for people to be able to go to heaven when they die.
But since human beings are made in God's image and have free will, He has protected us by keeping us ignorant of these things until now. Humans were never meant to know good and evil; God only exists and operates within certain parameters set by human behavior.
16-17, "You are free to eat from any tree in the garden, but you must not eat from the tree of the knowledge of good and evil, because if you eat from it, you will definitely die," the LORD God said to the man.
God planted the tree of knowledge of good and evil in the Garden of Eden to offer Adam and Eve the option of obeying or disobeying Him. Adam and Eve were free to do anything they pleased, with the exception of eating from the tree of the knowledge of good and evil.
So, by putting the Tree of Knowledge of Good and Evil in the Garden of Eden and telling Man not to eat from it, God was basically giving Man the option between good and evil. If He didn't give Man this option, then what would happen? Well, everyone would be like God and try to become like Him.
Man's choice whether to eat from the Tree of Knowledge of Good and Evil or not to eat from it has always been part of religion. Some people choose to eat from it, some don't. But anyway, back to our story.
God created the Tree of Knowledge of Good and Evil because He wanted man to have freedom of choice and not be like Him.
He wanted man to be equal with Him and have the same power that He has, so He gave him free will. This means that Man can decide what role he wants to play in His creation. Does he want to be like God and know good and evil? Or does he not want to know anything other than what God has already revealed to him through nature and science?
It's up to him. But now that Man has chosen how he wants to live his life, God has decided not to force Him to stay in paradise.
Consuming the fruit of the tree of the knowledge of good and evil, according to Christian belief, was the sin committed by Adam and Eve that resulted in the fall of man in Genesis 3. Augustine emphasized that the fruits of that tree were not inherently wicked, because everything God made "was good" (Genesis 1:12). But when humans decided to eat from it, they became aware of good and evil, and this led them to disobey their Creator.
Christianity also believes that salvation can only be obtained through faith in Jesus Christ. Through His death on the cross, He redeemed us from the curse of the law written on our hearts, bringing us into a relationship with God based on love rather than law. Christians are called to live by faith in Christ and obey His commands (see John 14-15), but they cannot keep God's laws.
The tree of knowledge represents human freedom and temptation. Before we knew good and evil, God created us with free will and we could have chosen different paths. But when He wanted to put an end to human suffering, He provided a way for us to be with Him forever. Jesus said, "I am the Way, the Truth, and the Life. No one comes to the Father except through Me."
When we accept Jesus Christ as our Savior, we are freed from our sins and given eternal life. We will never suffer death again because we will never die physically!