I believe “those that partake in the 1st resurrection” is a reference to Ephesians 2:6 and 1 Peter 2:9 and John 11:26
Ephesians 2:4 But God, who is rich in mercy, for his great love wherewith he loved us
5 Even when we were dead in sins, hath quickened us together with Christ, (by grace ye are saved; )
6 And hath raised us up together, and made us sit together in heavenly places in Christ Jesus:
7 That in the ages to come he might shew the exceeding riches of his grace in his kindness toward us through Christ Jesus.
8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:
9 Not of works, lest any man should boast.
10 For we are his workmanship, created in Christ Jesus unto good works, which God hath before ordained that we should walk in them.
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1 Peter 2:1 Wherefore laying aside all malice, and all guile, and hypocrisies, and envies, and all evil speakings,
2 As newborn babes, desire the sincere milk of the word, that ye may grow thereby:
3 If so be ye have tasted that the Lord is gracious.
4 To whom coming, as unto a living stone, disallowed indeed of men, but chosen of God, and precious,
5 Ye also, as lively stones, are built up a spiritual house, an holy priesthood, to offer up spiritual sacrifices, acceptable to God by Jesus Christ.
6 Wherefore also it is contained in the scripture, Behold, I lay in Sion a chief corner stone, elect, precious: and he that believeth on him shall not be confounded.
7 Unto you therefore which believe he is precious: but unto them which be disobedient, the stone which the builders disallowed, the same is made the head of the corner,
8 And a stone of stumbling, and a rock of offence, even to them which stumble at the word, being disobedient: whereunto also they were appointed.
9 But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light:
10 Which in time past were not a people, but are now the people of God: which had not obtained mercy, but now have obtained mercy.
11 Dearly beloved, I beseech you as strangers and pilgrims, abstain from fleshly lusts, which war against the soul;
12 Having your conversation honest among the Gentiles: that, whereas they speak against you as evildoers, they may by your good works, which they shall behold, glorify God in the day of visitation.
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John 11:17 Then when Jesus came, he found that he had lain in the grave four days already.
18 Now Bethany was nigh unto Jerusalem, about fifteen furlongs off:
19 And many of the Jews came to Martha and Mary, to comfort them concerning their brother.
20 Then Martha, as soon as she heard that Jesus was coming, went and met him: but Mary sat still in the house.
21 Then said Martha unto Jesus, Lord, if thou hadst been here, my brother had not died.
22 But I know, that even now, whatsoever thou wilt ask of God, God will give it thee.
23 Jesus saith unto her, Thy brother shall rise again.
24 Martha saith unto him, I know that he shall rise again in the resurrection at the last day.
25 Jesus said unto her, I am the resurrection, and the life: he that believeth in me, though he were dead, yet shall he live:
26 And whosoever liveth and believeth in me shall never die. Believest thou this?
27 She saith unto him, Yea, Lord: I believe that thou art the Christ, the Son of God, which should come into the world.
28 And when she had so said, she went her way, and called Mary her sister secretly, saying, The Master is come, and calleth for thee.
29 As soon as she heard that, she arose quickly, and came unto him.
30 Now Jesus was not yet come into the town, but was in that place where Martha met him.
31 The Jews then which were with her in the house, and comforted her, when they saw Mary, that she rose up hastily and went out, followed her, saying, She goeth unto the grave to weep there.
32 Then when Mary was come where Jesus was, and saw him, she fell down at his feet, saying unto him, Lord, if thou hadst been here, my brother had not died.
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Revelation 20:4 And I saw thrones, and they sat upon them, and judgment was given unto them: and I saw the souls of them that were beheaded for the witness of Jesus, and for the word of God, and which had not worshipped the beast, neither his image, neither had received his mark upon their foreheads, or in their hands; and they lived and reigned with Christ a thousand years.
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 hath part in the first resurrection: on such the second death hath no power, but they shall be priests of God and of Christ, and shall reign with him a thousand years.
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When comparing all of these none of the passages you provided even hint at the following, which is also something connected with the first resurrection, obviously---And I saw thrones, and they sat upon them, and judgment was given unto them.
If the first resurrection is something that takes place in this age, multiple times at that, so must the same be true of what I submitted from Revelation 20:4.
Revelation 20:4 does not say---and I saw the souls of them that were beheaded for the witness of Jesus, and for the word of God, and which had not worshipped the beast, neither his image, neither had received his mark upon their foreheads, or in their hands; and they lived and reigned with Christ a thousand years.
That verse says---And I saw thrones, and they sat upon them, and judgment was given unto them: and I saw the souls of them that were beheaded for the witness of Jesus, and for the word of God, and which had not worshipped the beast, neither his image, neither had received his mark upon their foreheads, or in their hands; and they lived and reigned with Christ a thousand years.
It is when John is seeing thrones, as in more than one, that he is also at that time seeing the souls of martyrs. We then need to look for passages involving thrones and judgment being given to the saints at the time.
Daniel 7:21 I beheld, and the same horn made war with the saints, and prevailed against them;
22 Until the Ancient of days came, and judgment was given to the saints of the most High; and the time came that the saints possessed the kingdom.
This is the interpretation of earlier visions in Daniel 7.
Verse 21 is pertaining to this---and, behold, there came up among them another little horn---in this horn were eyes like the eyes of man, and a mouth speaking great things(Daniel 7:8)----And I saw one of his heads as it were wounded to death; and his deadly wound was healed(Revelation 13:3)-----And there was given unto him a mouth speaking great things and blasphemies; and power was given unto him to continue forty and two months. And he opened his mouth in blasphemy against God, to blaspheme his name, and his tabernacle, and them that dwell in heaven. And it was given unto him to make war with the saints, and to overcome them((Revelation 13:5-7).
Verse 22 is pertaining to this---I beheld till the thrones were cast down, and the Ancient of days did sit, whose garment was white as snow, and the hair of his head like the pure wool: his throne was like the fiery flame, and his wheels as burning fire. A fiery stream issued and came forth from before him: thousand thousands ministered unto him, and ten thousand times ten thousand stood before him: the judgment was set, and the books were opened. I beheld then because of the voice of the great words which the horn spake: I beheld even till the beast was slain, and his body destroyed, and given to the burning flame(Daniel 7:9-11)---And I saw thrones, and they sat upon them, and judgment was given unto them(Revelation 20:4)--- and judgment was given to the saints of the most High; and the time came that the saints possessed the kingdom(Daniel 7:22).
It is Revelation 20:4 that is connected with Daniel 7:9-11. Which then means there is zero connection with Daniel 7:9-11 and that of Revelation 20:11-15 like some have wrongly proposed in the past. Revelation 20:11-15 is meaning after the thousand years, Daniel 7:9-11 is not if it is connected with Revelation 20:4. instead
Maybe not to someone with a Preterist mindset would the 42 month reign of the beast be followed by the bodily return of Christ in the end of this age, but to some of the rest of it would be followed by His bodily return. That places the thousand years during the time of His bodily return not prior to it instead. Everything I just submitted above from Daniel 7 is meaning before the thousand years and during the thousand years. Before the thousand years is when the little horn wages war on the saints and overcomes them. During the thousand years, or at least at the beginning of it, that is what Daniel 7:9-11 is involving, plus it is also involving Revelation 19:20.