Was Judas a Christian? Did he not APPEAR to be a servant?
You know that before the antichrist can be revealed there must be a falling away. These are not Christians that are falling away. These are people that have been given the gospel, should accept the truth, but have instead turned to what their ear wants to hear. Our population of Christians in our country has plummeted, and attendance in non-gospel, feel good, "churches" have gone through the roof. Do you know anyone that is true, born again, Bible reading, Christian that would turn away from sound doctrine to false teaching? The answer is NO. This is why Jesus and Paul told us to study and know the word so that we would not be deceived.
Those that love Jesus, and his word will read his word, and not be deceived. We know that there will be fake Christians in end days. Jesus said that when he returns people will say Lord Lord, and Jesus will say be gone, I never knew thee.
If they are Jewish that is how.How can they forsake the holy covenant if they were never in agreement with the holy covenant?
All you have done here is describe James 2:17-18:Salvation in the tribulation is by faith AND works.
17In the same way, faith by itself, if it is not accompanied by action, is dead.
18But someone will say, "You have faith; I have deeds."
Show me your faith without deeds, and I will show you my faith by what I do.
Anyone who is saved will do good works. In other words, if you aren't saved you wouldn't do good works, you wouldn't have any works to show. Thus, those in the tribulation that aren't doing good works aren't saved. Nothing changed there from now to the tribulation. This doesn't explain that one can lose their salvation.
Again, as Daniel states, those that know their God will resist the antichrist.