Teachers During The Tribulation

If any of your family members are not "raptured", who will be teaching them the truth about God during the tribulation if all true Christians have been raptured and only false priest and teachers are left on earth?
If their only teachers are those with a distorted understanding of God, then how can they possibly learn the truth?
Therefore, who will be their teachers? If you believe in a pre-tribulation rapture, then you will not like the answer.