The three letters stand for words that are Not a part of the Doctrine of Christ, but the Tradition of men. Traditions slip in because the enemy is an unbeliever-yet allowed to print, produce, and teach: The miss-teachings are pure deception. It is received by itchy ears, babes, or those seeking entertainment.
"Revival" this a cute word that is not found in the Word. John the Baptist, a Witness of Christ Jesus as Immanuel, taught Repentance, and the Kingdom. Christ Jesus and His disciples taught Kingdom. We as Witnesses are to be teaching Kingdom, around the world. The bridge from man to Our FATHER is through Christ-alone.
Rapture is another word that is made up; it is Not in the Word. This is a part of the Traditions of men, that sneaked into "new" books approximately 110-125 yrs. ago. It will be a sermon of the Beast, aka Fake-Christ during His 5 months on the earth. Our "LORD is against soul hunters." This is the doctrine of Nimrod and the Tower of Babel.
Rehab, miss-known as a harlot. This in my opinion, is allowed to stand, because the truth is there for the meat-eaters: babes will not catch it.
Rehab is a part of the genealogy of Christ. She knew all of the details of the Hebrews. She employed wisdom to save her families life and the lives of the spies. Flax on the roof is the key to her vocation. Other than a name, there is no evidence that she was anything other than a Seamstress.
1 John 2:2 2, identifies an Antichrist: 1 John 4:1-6 deals with the spirit of the antichrist. 2 John 10 "If any come unto you, and bring not this doctrine, receive him not into your house, neither bid him God speed."