These are just my thoughts and my end time theories may not line up with yours.
"Now the Spirit expressly says that in later times some will depart from the faith by devoting themselves to deceitful spirits and teachings of demons,"
1 Timothy 4:1
In the last days, people of faith will depart from the body of Christ. This is known as the great apostasy or falling away. Some Bible versions call it the rebellion.
How many will depart from the faith? Do we know? Well, maybe.
Here is what I believe:
The Bible gives us clues in the Parable of the Seed
The parable of the seed, I believe is a foreshadowing that 75% of Christians will be part of the Apostasy (falling away) in the end times.
The Seed Parable:
In the end times, 75% will fall away from the faith in what the Bible
calls the Apostasy.
Take care, brethren, that there not be in any one of you an evil, unbelieving heart that falls away from the living God. --- Hebrews 3:12 NASB
I will set no worthless thing before my eyes; I hate the work of those who fall away; It shall not fasten its grip on me. --- Psalm 101:3
Read Matthew 13:18-23
The reasons in the seed parable that people turned from believing:
► Birds ate seeds = deception
► Rocky soil = persecution
► Thorns = greed
The Bible calls greed, idolatry. (Colossians 3:5 NASB)
All three of these reasons for falling away from the faith are well rooted in end time events as warned in scripture.
(Colossians 2:8, James 1:16, 2 Corinthians 11:3-4, 2 Thessalonians 2:10, 2 Peter 2:13, Matthew 24:4, 2 John 1:7)
(1 John 3:13, John 15:20, John 16:33, John 15:18, 1 Peter 4:12-14, Luke 6:22, Revelation 2:10, 2 Timothy 3:12)
(Luke 12:15, 2 Peter 2:3, 2 Peter 2:14, 1 Timothy 6:9)
[greed includes money but also possessions like food]
If there are about 2 billion people on the planet who count themselves as Christian, then
1.5 billion will fall away. That leaves only half a billion or 500 million Christians (not counting
any new converts).
How many of these 500 million will be raptured? How many martyred?
Any clues in the Bible?
I think there is!