For a Christian, to Die is Gain.

Here are some verses that show dying is indeed gain for the child of God:

Revelation 21:3-7 ³ And I heard a loud voice from the throne saying, “Look! God’s dwelling place is now among the people, and he will dwell with them. They will be his people, and God himself will be with them and be their God. ⁴ ‘He will wipe every tear from their eyes. There will be no more death’ or mourning or crying or pain, for the old order of things has passed away.”

⁵ He who was seated on the throne said, “I am making everything new!” Then he said, “Write this down, for these words are trustworthy and true.”

⁶ He said to me: “It is done. I am the Alpha and the Omega, the Beginning and the End. To the thirsty I will give water without cost from the spring of the water of life. ⁷ Those who are victorious will inherit all this, and I will be their God and they will be my children.

1 Corinthians 15:35-58 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. ⁵¹ Listen, I tell you a mystery: We will not all sleep, but we will all be changed— ⁵² in a flash, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, the dead will be raised imperishable, and we will be changed. ⁵³ For the perishable must clothe itself with the imperishable, and the mortal with immortality. ⁵⁴ When the perishable has been clothed with the imperishable, and the mortal with immortality, then the saying that is written will come true: “Death has been swallowed up in victory.”

⁵⁵ “Where, O death, is your victory?
Where, O death, is your sting?”

⁵⁶ The sting of death is sin, and the power of sin is the law. ⁵⁷ But thanks be to God! He gives us the victory through our Lord Jesus Christ. ⁵⁸ Therefore, my dear brothers and sisters, stand firm. Let nothing move you. Always give yourselves fully to the work of the Lord, because you know that your labor in the Lord is not in vain.

2 Corinthians 5:1-9 For we know that if the earthly tent we live in is destroyed, we have a building from God, an eternal house in heaven, not built by human hands. ² Meanwhile we groan, longing to be clothed instead with our heavenly dwelling, ³ because when we are clothed, we will not be found naked. ⁴ For while we are in this tent, we groan and are burdened, because we do not wish to be unclothed but to be clothed instead with our heavenly dwelling, so that what is mortal may be swallowed up by life. ⁵ Now the one who has fashioned us for this very purpose is God, who has given us the Spirit as a deposit, guaranteeing what is to come.

⁶ Therefore we are always confident and know that as long as we are at home in the body we are away from the Lord. ⁷ For we live by faith, not by sight. ⁸ We are confident, I say, and would prefer to be away from the body and at home with the Lord. ⁹ So we make it our goal to please him, whether we are at home in the body or away from it.

Philippians 3:20-21 But our citizenship is in heaven. And we eagerly await a Savior from there, the Lord Jesus Christ, ²¹ who, by the power that enables him to bring everything under his control, will transform our lowly bodies so that they will be like his glorious body.

All of these promises gave Paul an incredible longing for heaven and all that is waiting there. Paul was certain that Jesus would work in him and through him, making a difference in people’s lives, because his heart was set on heaven.