The Catechism in Questions & Answers

223. What is related in Holy Scripture concerning the fall into sin?

God had commanded Adam and Eve not to eat of the tree of the knowledge of good and evil, which stood in the middle of the garden of Eden. God also made them aware of the consequences of breaking this commandment: “For in the day that you eat of it you shall surely die” (Genesis 2: 17). The Devil influenced the first human beings and awakened doubt in God’s word: “You will not surely die. For God knows that in the day you eat of it your eyes will be opened, and you will be like God, knowing good and evil” (Genesis 3: 4, 5). Adam and Eve gave in to temptation. They rebelled against God, transgressed His commandment, and ate of the fruit of the tree. This disobedience toward God is described as the fall into sin.