Amen!
What is coming is: The resurrection from the dead. The redemption of the body.
That's not what the Bible says. Our physical bodies are corrupt, and will perish after physical death. Believers will be given new bodies, called "resurrection bodies", per 1 Cor 15 -
35 But someone will ask, “How are the dead raised? With what kind of body will they come?”
36 How foolish! What you sow does not come to life unless it dies.
37 When you sow, you do not plant the body that will be, but just a seed, perhaps of wheat or of something else.
38 But God gives it a body as he has determined, and to each kind of seed he gives its own body.
39 Not all flesh is the same: People have one kind of flesh, animals have another, birds another and fish another.
40 There are also heavenly bodies and there are earthly bodies; but the splendor of the heavenly bodies is one kind, and the splendor of the earthly bodies is another.
41 The sun has one kind of splendor, the moon another and the stars another; and star differs from star in splendor.
42 So will it be with the resurrection of the dead. The body that is sown is perishable, it is raised imperishable;
43 it is sown in dishonor, it is raised in glory; it is sown in weakness, it is raised in power;
44 it is sown a natural body, it is raised a spiritual body. If there is a natural body, there is also a spiritual body.
45 So it is written: “The first man Adam became a living being” ; the last Adam, a life-giving spirit.
46 The spiritual did not come first, but the natural, and after that the spiritual.
47 The first man was of the dust of the earth; the second man is of heaven.
48 As was the earthly man, so are those who are of the earth; and as is the heavenly man, so also are those who are of heaven.
49 And just as we have borne the image of the earthly man, so shall we bear the image of the heavenly man.
50 I declare to you, brothers and sisters, that flesh and blood cannot inherit the kingdom of God, nor does the perishable inherit the imperishable.
28 Do not marvel at this; for the hour is coming in which all who are in the graves will hear His voice 29 and come forth—those who have done good, to the resurrection of life, and those who have done evil, to the resurrection of condemnation. 30 I can of Myself do nothing. As I hear, I judge; and My judgment is righteous, because I do not seek My own will but the will of the Father who sent Me. John 5:28-30
How does this passage relate to Eph 1:13,14, 4:30, and 2 Cor 1:22 and 5:5? Please explain. Simply posting a verse or passage without any explanation provides no understanding of the poster's point.
The point of what has been guaranteed is the believer's redemption, which is another way of saying that one's salvation is guaranteed on the basis of being sealed with the Holy Spirit.
31 “When the Son of Man comes in His glory, and all the holy angels with Him, then He will sit on the throne of His glory. 32 All the nations will be gathered before Him, and He will separate them one from another, as a shepherd divides his sheep from the goats. 33 And He will set the sheep on His right hand, but the goats on the left. 34 Then the King will say to those on His right hand, ‘Come, you blessed of My Father, inherit the kingdom prepared for you from the foundation of the world: 35 for I was hungry and you gave Me food; I was thirsty and you gave Me drink; I was a stranger and you took Me in; 36 I was naked and you clothed Me; I was sick and you visited Me; I was in prison and you came to Me.’
37 “Then the righteous will answer Him, saying, ‘Lord, when did we see You hungry and feed You, or thirsty and give You drink? 38 When did we see You a stranger and take You in, or naked and clothe You? 39 Or when did we see You sick, or in prison, and come to You?’ 40 And the King will answer and say to them, ‘Assuredly, I say to you, inasmuch as you did it to one of the least of these My brethren, you did it to Me.’
41 “Then He will also say to those on the left hand, ‘Depart from Me, you cursed, into the everlasting fire prepared for the devil and his angels: 42 for I was hungry and you gave Me no food; I was thirsty and you gave Me no drink; 43 I was a stranger and you did not take Me in, naked and you did not clothe Me, sick and in prison and you did not visit Me.’
44 “Then they also will answer Him, saying, ‘Lord, when did we see You hungry or thirsty or a stranger or naked or sick or in prison, and did not minister to You?’ 45 Then He will answer them, saying, ‘Assuredly, I say to you, inasmuch as you did not do it to one of the least of these, you did not do it to Me.’ 46 And these will go away into everlasting punishment, but the righteous into eternal life.”
Matthew 25:31-46
Please provide explanation of how this passage relates to the OP.
Here is the phrase from the OP:
for the hour is coming in which all who are in the graves will hear His voice and come forth—those who have done good, to the resurrection of life, and those who have done evil, to the resurrection of condemnation. John 5:28-29
This verse wasn't mentioned in the OP. This claim is in error.
More verses were included in this post, but there was no explanation of how they related to the OP in any way.
What is guaranteed to come is our redemption. Meaning, our salvation. All based on being sealed with the Holy Spirit.
Not our lifestyle. Not our works. And sealing is based on initial faith in Christ, since that's what Eph 1:13 says. " And you also were included in Christ when you heard the message of truth, the gospel of your salvation.
When you believed, you were marked in him with a seal, the promised Holy Spirit,"
Clear as can be.