It is not wrong for Christians to grieve deeply over the loss of fellowship with those who have died, even if the deceased were believers and there is great confidence that they are with the Lord in heaven. Grief at loss of any sort is natural. Although the apostles themselves were present in the early church in Jerusalem, and the believers in Jerusalem were sure that Stephen was in heaven with Christ (cf. Acts 7:59), they still expressed profound grief: “Devout men buried Stephen and made great lamentation over him” (Acts 8:2). Although Jesus knew he would raise Lazarus from the dead, when he came to the tomb of Lazarus, “Jesus wept” (John 11:35). These examples indicate that it is right and proper to grieve at the death of a Christian loved one. But Christians should not “grieve as others do who have no hope” (1 Thess. 4:13), that is, their grief should not be the grief of despair, but grief mixed with joy and hope for future reunion (see 1 Cor. 15:55–57; Rev. 14:13).

When unbelievers die, if there has been no indication of saving faith in the person's life, it would not be right to give the person's loved ones assurance that the one who has died is in heaven. But it is still right to recall and speak of pleasant memories, and to remember the good things that the person did in his or her lifetime, much as David did after hearing that Saul had died (see 2 Sam. 1:19–25).

The Bible does not give any direct commands about how to treat the body of a person who has died, but there are recurring instances in Scripture of treating a person's body with dignity and respect, up to and including the time of burial (cf. 1 Sam. 31:11–12; 1 Kings 13:29–30; Mark 6:29; Luke 23:56; John 19:38–42). This can be done in a variety of ways according to what is understood in each culture as signifying respect and honor to the memory of the person who has died.

Regarding cremation, Christians have held differing views. Some object that cremation (which entails destroying the physical body) undermines the expectation of a future resurrection of the body when Christ returns. (When Jesus rose from the dead, it was his same body that was raised and made perfect, and so it will be with Christian believers; see 1 Cor. 15:35–45.) Others, however, think cremation is sometimes the wisest choice, perhaps for economic reasons, because burial land is scarce, or for other reasons. The body is eventually going to die and disintegrate in any case, and God will raise it from the dead and re-create it in its more perfect condition (i.e., in its glorified prime), no matter how scattered it is. If cremation is chosen for a Christian who has died, care should be taken to make clear that the family still should expect a future resurrection of the very same body that has died and now returns “to dust” (Gen. 3:19). But many Christians still prefer a simple and dignified burial of the person's body in the ground, in part because this gives a clear picture of awaiting the resurrection on the day Christ returns.