Luke 11:52 The key of knowledge

 

⁵² Woe unto you, lawyers! for ye have taken away the key of knowledge: ye entered not in yourselves, and them that were entering in ye hindered.

The Fullness of the Gospel, or the deeper spiritual knowledge, is an important Key to know how to enter into Heaven permanently rather than only temporarily. Many of those people who are on their way to hell or only going into heaven temporarily will hinder those who are wanting to enter into Heaven permanently.