Here is what i teach my Students.
So, reader put it in your "theology file" with the rest, and see how it manifests.
First of all, the world is not falling away from anything.
Its not of God, so, what would it "fall away" from?
This world is under the control of "the god of this world', so, what are unbelievers going to fall from, when they are owned by the Devil?
If there was a great falling away of unbelievers, then that would be the world turning to Christ.
Not going to happen.
So, here is the great falling away.
Its not the rapture, as that is a "catching away", and a "going up", not a falling away from....
See that?
Here is the great falling away.
Its a falling away from The Gospel of the Grace of God.
Its an end time "church" that has lost the truth regarding "justification by faith"...
The GRACE of God, has been hidden, its been subverted, its been removed... its been "fallen away from"....
Just like you "fall from Grace".. as a person.
This is what has happened to the body of Christ, in these end times.
Its "fallen away" from the True Gospel, that is the "Grace of God."= "Paul's Gospel.
So, Reader, put that "in there" and see if the Holy Spirit, flips on the Light switch.