This is talking about the falling away with Andy Woods, Jeff Kinley, and don't know the other person. I was hoping Jeff Kinley would say something in this, but he didn't. The above link with Lamb & Lion he takes the side of apostasy in the church as the falling away. Andy Woods believes the falling away is the church departing as in the

. Here is the link to watch with Andy Woods.
https://www.youtube.com/watch?v=I9SruDOBoKE
I agree with Lamb and Lion, that the falling away is the apostasy in the Church and fewer and fewer people believing and so less and less salt, light, and Great Commission.
3 Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition;
2 Thessalonians 2:3, KJV
The Strong's number for falling away is G646:
Strong's entry from e-Sword:
apostasia
ap-os-tas-ee'-ah
Feminine of the same as G647; defection from truth (properly the state), (“apostasy”): - falling away, forsake.
Total KJV occurrences: 2
A very conservative Pastor told me that doctrine drives practice.
The Evangelical Lutheran Church in America (ELCA) has doctrine that allows women and homosexual Pastors and celebration of homosexual "weddings," so, they have women and homosexual Pastors and celebrate homosexual "weddings."
God tells us
6 Your glorying is not good. Know ye not that
a little leaven leaveneth the whole lump?
1 Corinthians 5:6, KJV
So it is not surprising that with the apostasy in the Pastoral office and weddings permeating the ELCA, that more apostasy would gain entry and grow. Sure enough, some ELCA churches are hosting muslim holiday meals and allowing muslim outreach and social services to use their buildings