Paul does not mention the resurrection of the unsaved dead in the Thessalonians passage. He mentions only the dead in Christ who rise first. That is the first resurrection. To make Paul say that both the saved and the unsaved dead rise at the same time is putting words into his mouth that are not there.
I take my position on these things from what the various Scriptures actually say and when the Thessalonians and the Revelation passages are combined, I see that all of the dead in Christ, including those who were martyred rise at exactly the same time, along with those who are still alive who are caught up to meet the Lord in the air. When Paul says "the dead in Christ shall rise first", he does not mean "some of the dead shall rise first". We can't take one Scripture at the expense of another, because it is the same Holy Spirit who inspired both, and He doesn't say one thing and then contradict it in another place.
The second resurrection is that of the unsaved dead who go to Judgment. This then means that there are just two resurrections, which is in keeping with there being just two classes of people - those in Christ, and those unsaved.
If therefore, by interpreting Scripture with Scripture I am biased, as you say, then I am biased. I just see and believe what the Scripture actually says and not try and adapt (or twist) the Scripture to fit my theological thinking.
If there is a split second between the righteous and the wicked during the second resurrection as recorded in Revelations 20 then are you not arguing over trivia as too whether both occurred at the end of the Ages of the Age just before the the judgement of the people before the white throne.
In Ezekiel 34:17 we are told that there will be two judgments made. The first is separating the flock from the flock or to put it another way, those that acknowledge God and those that do not, or to put it another way, those that still call God Lord and those that do not, which is then followed by the separation of the "he goats" from the rams which Christ described in the Matt 25:41-46 parable of the separation of the sheep from the goats.
In the first judgement, those that do not call God Lord are separated out to go into the lake of fire, with the second judgement of the people who call God Lord into the goats and the sheep, i.e. those that have a heart after God's heart and those that do not. Those that do not have heart after God's heart are separated out to go into the Lake of fire to join the Beast, the False Prophet and Satan.
Does not scripture also tell us that all of the people of the earth, both the living and the dead, the righteous and the unrighteous, will see Christ coming on the clouds with all of the Hosts of Heaven and Paul tells us the order of the righteous, in 1 Thess 4:17, who will rise up to meet Christ in the air.
Now in Matt 7:21-23 Jesus told us this: -
Matthew 7:21-23: - 21 "Not everyone who says to Me,'Lord, Lord,' shall enter the kingdom of heaven, but he who does the will of My Father in heaven. 22 Many will say to Me in that day, 'Lord, Lord, have we not prophesied in Your name, cast out demons in Your name, and done many wonders in Your name?' 23 And then I will declare to them, 'I never knew you; depart from Me, you who practice lawlessness!'
Now is Paul in 1 Thess 4:13-18 describing the first separation of the flock from the flock, in Ez 34:17, where Paul is not giving or making a judgement call over the people who call Jesus Lord or their motives in doing so?
By making a reference to myself, in your post above where you said: -
I agree totally. But we have a friend who is using the Revelation reference that sets the martyrs having their own resurrection before the others, which ignores what Paul says about the resurrection of the dead in Christ in his letter to the Thessalonians. We see in Thessalonians that Paul says "the dead in Christ shall rise first". He doesn't say "the martyrs in Christ shall rise first, and then the others in the second resurrection" which is what our friend is trying to say.
You have made a judgment call on what I have posted and have separated yourself into the "Rapture" camp/bias in your understanding.
Did not Jesus also warn us about trying to save ourselves when he said: -
Matthew 16:24-27: - 24 Then Jesus said to His disciples, "If anyone desires to come after Me, let him deny himself, and take up his cross, and follow Me. 25 For whoever desires to save his life will lose it, but whoever loses his life for My sake will find it. 26 For what profit is it to a man if he gains the whole world, and loses his own soul? Or what will a man give in exchange for his soul? 27 For the Son of Man will come in the glory of His Father with His angels, and then He will reward each according to his works.
We all need to heed Jesus' warnings to us. I trust that you have and are doing so.
Shalom