Why would God care if we ate from the Tree of Knowledge?
It was the tree of knowledge OF GOOD AND EVIL. He forbade that fruit as He would prefer man to live in innocence. Once they ate that fruit, sin entered into the world and with sin, death. Jesus was sent to remove sin from the world, to once more bring man close to God. Through belief in Jesus Christ we come to know our Father which art in Heaven. They (God and Christ) enter the heart of the believer to change them into a new man, the penitent or faithful man. In the end of days, the Lord’s plan shall come to fruition and those who believe will be made anew, clothed with incorruptible flesh. We will be free from all suffering (which is in sin) and worship our God and King forever and ever.