The Christian end-time expectation is directed not only at the future of the church but also at the future of the individual believer. It includes definite conceptions of the personal continuance of life after death. Many baptized early Christians were convinced they would not die at all but would still experience the advent of Christ in their lifetimes and would go directly into the kingdom of God without death. Others were convinced they would go through the air to meet Christ returning upon the clouds of the sky: “Then we who are alive, who are left, shall be caught up together with them in the clouds to meet the Lord in the air; and so we shall always be with the Lord” (1 Thessalonians 4:17). In the early imminent expectation, the period between death and the coming of the kingdom still constituted no object of concern. An expectation that one enters into bliss or perdition immediately after death is also found in the words of Jesus on the cross: “Today you will be with me in Paradise” (Luke 23:43).

In the Nicene Creed the life of the Christian is characterized as “eternal life.” In the Gospels and in the apostolic letters, “eternal” is first of all a temporal designation: in contrast to life of this world, eternal life has a deathless duration. In its essence, however, it is life according to God’s kind of eternity—i.e., perfect, sharing in his glory and bliss (Romans 2:7, 10). “Eternal life” in the Christian sense is thus not identical with “immortality of the soul”; rather, it is only to be understood in connection with the expectation of the resurrection. “Continuance” is neutral vis-à-vis the opposition of salvation and disaster, but the raising from the dead leads to judgment, and its decision can also mean eternal punishment (Matthew 25:46). The antithesis to eternal life is not earthly life but eternal death.

Eternal life is personal life, and precisely therein is fulfilled the essence of humanity created according to the image of God. Within eternal life there are differences. In the present life there are variations in talent, duty, responsibility, and breadth and height of life, just as there are also distinctions in “wages” according to the measure of the occupation, the sacrifice of suffering, and the trial (1 Corinthians 3:8). Correspondingly, the resurrected are also distinguished in eternal life according to their “glory”:

There is one glory of the sun, and another glory of the moon, and another glory of the stars; for star differs from star in glory. So it is with the resurrection of the dead (1 Corinthians 15:41–42).

This expectation has had a great influence upon the Christian conception of marriage and friendship. The idea of a continuation of marriage and friendship after death has contributed very much to the deepening of the view of marriage, as is shown by the strong influence of the 17th–18th-century Swedish mystic, philosopher, and scientist Emanuel Swedenborg’s ideas upon the romantic philosophy of religion and its interpretation of marriage and friendship in the thought of the German scholars Friedrich Schelling and Friedrich Schleiermacher. The Western concept of personality was thus deepened through the Christian view of its eternal value.

The delay of the imminent expectation brought about the question of the fate of the dead person in the period between the death of the individual Christian and the resurrection. Two basic views were developed. One view is that of an individual judgment, which takes place immediately after death and brings the individual to an interim state, from which he enters into the realm of bliss or that of perdition. The idea of an individual judgment, however, cannot be readily harmonized with the concept of the general Last Judgment on the day of the general resurrection of the dead. It anticipates the decision of the general judgment and thus deprives of its significance the notion of the Last Judgment. A second view, therefore, also prevailed: the sleep of the soul—i.e., the soul of the dead person enters into a sleeping state that continues until the Last Judgment, which will occur after the general resurrection. At the Last Judgment the resurrected will be assigned either to eternal life or eternal damnation. This conception, accepted in many churches, contains many discrepancies, especially the abandonment of the fundamental idea of the continuity of personal life.

Both views contain an inhuman consequence. The first leaves to people no further opportunity to improve the mistakes of their lives and to expiate their guilt. The second preserves the personality in an intermediate state for an indefinite period so as to later punish it for sins or reward it for good deeds from a time prior to entrance into the sleep of the soul. The belief in purgatory (an interim state in which a correction of a dead person’s evil condition is still possible) of the Roman Catholic Church gives the deceased opportunities for repentance and penance to ameliorate their situation.

The presupposition of the doctrine of purgatory is that there is a special judgment for each individual at once after death. Hence, the logical conclusion is that purgatory ceases with the Last Judgment. The stay in purgatory can be shortened through intercession, alms, indulgences, and benefits of the sacrifice of the mass. The Eastern Orthodox Church has no doctrine of purgatory but does practice an intercession for the dead. It assumes that, on the basis of the connection between the church of the living and that of the dead, an exertion of influence upon the fate of the dead through intercession is possible before the time of the Last Judgment.

The doctrine of the sleep of the soul, on the other hand, contains many consequences that question the fundamental idea of the Christian view of the personality of the imago Dei (“image of God”). The beginnings of a further development of the Christian view of life after death, as are found in Swedenborg, have never been recognized positively by the church. For this reason, since the period of Romanticism and idealism, ideas of the transmigration of souls and reincarnation, taken over from Hinduism and Buddhism, have gained a footing in Christian views of the end-time expectation. Some important impulses toward a new understanding of the view of life after death are found in Christian theosophy, such as the idea of a further development of the human personality upon other celestial bodies after death.

For the most part, the churches of the early part of the 21st century have long neglected teachings about the entire area of the last things. The idea of the Last Judgment has often become incomprehensible to the modern world. At the most, people apparently are still open to the concept of judgment of the guilt and innocence of the individual. The idea decisive for the early church’s expectation of the Judgment, however, was that the Last Judgment will be a public one. This corresponds to the fundamental Christian idea that human beings—both the living and the dead—are bound together in an indissoluble communion; it presupposes the conception of the church as the body of Christ. All of humanity is as one person. Humans sin with one another, and their evil is connected together in the “realm of sin” in a manifold way, unrecognizable in the individual. The judgment upon each person, therefore, concerns all. Judgment upon the individual is thus at the same time judgment upon the whole, and vice versa. The Judgment is also public in regard to the positive side—the praise and reward of God for that which is done rightly and practiced in the common life, often without knowing it.