Numerous important verses from the Bible are known well enough to be referenced rather than quoted. Here are some of them:

Genesis 2:17

is a key Bible verse for discussions about the fall of man and Original sin.

But of the tree of the knowledge of good and evil, thou shalt not eat of it: for in the day that thou eatest thereof thou shalt surely die. (KJV)

Even though Adam and Eve are described as eating the fruit, they did not "die" immediately (in the physical sense). According to the Unification Church interpretation, they "died" in a spiritual sense: their relationship with God was cut off.