Do you believe 1 Cor. 15:49-55 has already taken place?
You also believe Nicodemus was born again before the resurrection of Jesus?
Jesus said, Abraham, Isaac and Jacob will be in the kingdom of God. Have they been resurrected yet?
1 Corinthians 15:49-55 is still yet future, For the trump hasn't sounded the church (i.e. the bride) hasn't been taken to heaven just yet. Nicodemus believed in Jesus as Messiah.
John 19:
38And after this Joseph of Arimathaea, being a disciple of Jesus, but secretly for fear of the Jews, besought Pilate that he might take away the body of Jesus: and Pilate gave him leave. He came therefore, and took the body of Jesus.
39And there came also Nicodemus, which at the first came to Jesus by night, and brought a mixture of myrrh and aloes, about an hundred pound weight.
40Then took they the body of Jesus, and wound it in linen clothes with the spices, as the manner of the Jews is to bury.
Joseph of Arimathaea was a disciple or believer in secret Nicodemus was with him when they came to bury Jeses. So do you think that a non-believer would risk power, position and prestige to help bury this blasphemer as Jesus was labled if he weren't a believer in secret like Joseph? If you say yes they would risk it then Nicodemus may not have believed if you no they wouldn't have risk it then Nicodemus was a believer a disciple of Christ.
As for Abraham, Isaac and Jacob the other O.T. saints we see this in
Matthew 24: 29
Immediately after the tribulation of those days shall the sun be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken:
30And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory.
31And he shall send his angels with a great sound of a trumpet, and they shall gather together his elect from the four winds, from one end of heaven to the other.
The elect of the O.T. will be resurrected after the tribulation according to Christ.
We see also,
Revelation 19:6 And I heard as it were the voice of a great multitude, and as the voice of many waters, and as the voice of mighty thunderings, saying, Alleluia: for the Lord God omnipotent reigneth.
7 Let us be glad and rejoice, and give honour to him: for the marriage of the Lamb is come, and his wife hath made herself ready.
8 And to her was granted that she should be arrayed in fine linen, clean and white: for the fine linen is the righteousness of saints.
9 And he saith unto me, Write, Blessed are they which are called unto the marriage supper of the Lamb. And he saith unto me, These are the true sayings of God.
Revelation 20: 4And 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.
5But the rest of the dead lived not again until the thousand years were finished. This is the first resurrection.
6Blessed 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.
7And when the thousand years are expired, Satan shall be loosed out of his prison,
In Matthew 24, Revelation 19 we see the ressurection of the O.T. saints who come and praise the Lamb at His marriage to His Bride (the church) "the voice of a great multitude". Verse the marriage of the Lamb has come. Then verse 9 we see the angel say "Blessed are they which are called unto the marriage supper of the Lamb" this is the O.T. saints at the marriage of the Lamb to the Bride the Church.
In then 20 we see the ressurection of the Tribulation Saints, verse 4 is the key that shows us this. Verse 5 says that the unbeliever will not be raised until after the 1000 year reign of Christ.
So that the ressurection of the Church is seen in 1 Corinthians 15:49-55, 1 Thessalonians 4:14 For if we believe that Jesus died and rose again, even so them also which sleep in Jesus will God bring with him.
15 For this we say unto you by the word of the Lord, that we which are alive and remain unto the coming of the Lord shall not prevent them which are asleep.
16 For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first:
17 Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord.
Revelation 3:10 Because thou hast kept the word of my patience, I also will keep thee from the hour of temptation, which shall come upon all the world, to try them that dwell upon the earth.
11Behold, I come quickly: hold that fast which thou hast, that no man take thy crown.
Christ promise to those who remain faithful and patient in waiting for His return, He will keep them from the hour of temptation or tribulation. The church will be kept from the tribulation.
Christ also says here be careful that no man take thy crown,
1 Timothy 4:8 Henceforth there is laid up for me a crown of righteousness, which the Lord, the righteous judge, shall give me at that day: and not to me only, but unto all them also that love his appearing
If you continue to watch for His appearing you will receive the crown of righteousness.
Revelation 4: 1 After this I looked, and, behold, a door was opened in heaven: and the first voice which I heard was as it were of a trumpet talking with me; which said, Come up hither, and I will shew thee things which must be hereafter.
2 And immediately I was in the spirit: and, behold, a throne was set in heaven, and one sat on the throne.
Notice John heard the voice of trumpet and the call come up hither, notice 1 Thessalonians 4:16 says " For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God" the church comes up hither.
So the ressurection of the Church will precede that of the O.T. saint and the tribulation saint and we will not see the tribulation accordint to the promise in Revelation 3:10.