There has never been much spoken on the 2nd death though we do hear about it in Rev 20:15, that death and Hades will be thrown in it at the 2nd resurrection of the dead. Studying the word and with God's spirit, I was shown in the bible the 2nd death is for those who have disqualified themselves by disgracing and publicly humiliating the Savior, which is described in Heb 6:6-8 Those who produce thorns and thistles are in danger of being cursed and in the END will be BURNED. The verses below will show this is real and it is coming to those who have heard the Kings voice and have defamed him with their actions. Two things happen according to the scriptures at Christ's coming, those who took the mark have their bodies left here for the fowls of the air to gorge themselves on. Then there is another group that Rev 14:17-20 called a cluster of grapes from off the vine. The good grapes are those mentioned and removed in Rev 14:14-16. The bad grapes are the other left here to face the wrath of God. These are mentioned in Jeremiah 8:13Revelation 20:5-15(5) But the rest of the dead lived not again until the thousand years were finished. This is the first resurrection.(6) Blessed and holy is he that has part in the first resurrection: on such the second death has no power, but they shall be priests of God and of Christ, and shall reign with him a thousand years. We know the good grapes are in the first resurrection and brought into the millennium to reign as Priest with Christ.But there are the bad grapes the cluster that are left for the harvesters as mentioned in Rev 14:14-20. We are removed while they face the wrath of God from out of their graves they also have been called up to have their flesh come back on them only to face the indignation long awaiting them. The 2nd death has no power over those who HAVE PART in the 1st resurrection. I think many have read over this without much thought given. We who have part in the millennium have not fear of the 2nd death. But not everyone called will enter into the 1st resurrection and the verses will prove this. We are told in John 5:28-29 Do not be amazed at this, for a time is coming when all who are in their graves will hear his voice at his coming back to earth to reign. Some to everlasting LIFE other to CONDEMNATION, which is the second death. 1.) all who are in their graves does not include those who have not known God and we know this because the dead do not hear his voice, but those who have been called hear his voice and will hear his voice from their grave at his coming. Plus we have those who come up in the 2nd resurrection called the rest of the dead do not come up in the 1st resurrection as Rev 20:11-16 speaks about it. 2.) the 1st resurrection is for those who have entered into the covenants only. Starting with Adam till the day of Christ's voice being HEARD which will raise up the dead in Christ, all who have been called by God in all dispensations, covenants, all who have heard his voice while alive, this is the group who is coming up. some to everlasting life, others to everlasting condemnation Dan 12:2. along with John 5:228-29 tells us this. This will be shown to us in the verses as stated. And we are also told in Rev 20:6 we who HAVE PART in this first resurrection have no fear of the 2nd death. Not every Jew or Christian is going to HAVE PART in the eternal life in the Millennium because there are verses below that tells us there are some who have disqualified themselves. Hebrews 6:4 It is impossible for those who have once been enlightened, who have tasted the heavenly gift, who have shared in the Holy Spirit, 5.) who have tasted the goodness of the word of God and the powers of the coming age, 6.) if they fall away, to be brought back to repentance, because "TO THEIR LOSS THEY ARE CRUCIFYING THE SON OF GOD ALL OVER AGAIN AND SUBJECTING HIM TO PUBLIC DISGRACE. Heb 6:7 speaks of the land that drinks in rain producing goodness for God receives the blessing from God, but those 8.) who produce THORNS and THISTLES is worthless and is "REJECTED AND IS NIGH UNTO CURSING; WHOSE END IS TO BE BURNED. There are other places Like Heb 10:26 that speaks about disqualification. Below in Jeremiah 8 is a whole chapter of God speaking about this day of the 2nd death, the cup of wrath, also called the water of Gall, those who sinned against God have to drink (Jer. 8:14)Jeremiah 8:1 At that time, saith the Lord, they shall bring out the bones of the kings of Judah, and the bones of his princes, and the bones of priest and the bones of prophets and the bones of the inhabitants of Jerusalem, out of their GRAVES. They shall spread them before the SUN, the MOON, AND ALL THE HOST OF HEAVEN, whom they have LOVED.We have the description of the 1st resurrection, those who have heard the Lord's voice in their life time and entered into a covenant with the Lord here in Jeremiah 8:1-2 Jeremiah 8:3 God says they have chosen death instead of LIFE. The 2nd death is what they have chosen instead of Eternal life. This is where the number of the Gentiles coming in has to be met. This is another topic, but I wanted to add this in for it is truth. In Jeremiah 8:7 (last part) my people knoweth not the JUDGMENT OF THE LORD. 8:8) How do ye say, We are wise, and the law of the Lord is with us? Lo, certainly in vain made he it; the pen of the scribes is in vain. 8:9 The wise men are dismayed and TAKEN; lo, they have rejected the word of the Lord; and what wisdom is in them? The rest of this chapter speaks so much about the doom and the 2nd death that those who Jesus says in John 5:28-29 who have been resurrected to CONDEMNATION WILL FACE when they are resurrected to face the 2nd death. Jeremiah 8:20 The harvest has past, the summer has ended, and we are NOT SAVED. Jeremiah 8:13 I will surely CONSUME THEM, saith the Lord; there shall be no grapes on the vine, nor figs on the tree, and the leaf shall fade; the things that I have given them shall PASS AWAY FROM THEM. In this verse 13, there are the grapes , which are Christians included in this resurrection to face the 2nd death with the fig tree who is Israel. This is a very real and makes me tremble at the truth of what is close to coming to be in the very near resurrection of those who hear the Lord's voice. Does this come out clear to you as it has to me? Our teachers who say we have peace don't worry about God he forgives everything, well, he does if we have not profaned his name repeatedly and not repented for us to make a disgrace to the name we carry, we will be found guilty of this charge to be consumed to a 2nd death at the resurrection.