The Good News that Jesus taught [Matthew, Mark, Luke, John] must go to all the world:
And this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come. (Matthew 24:14)
A Christian apostasy must take place:
Let no man deceive you by any means: for that day [when Jesus returns] shall not come, except there come a falling away first. (2 Thessalonians 2:3)
The deceiver who caused the Christian Apostasy must be revealed:
And that man of sin be revealed. (2 Thessalonians 2:3)
*For more details get the book: Before He Comes.