'Fallen Asleep' in the Bible

After that He appeared to more than five hundred brothers and sisters at one time, the majority of whom are still alive, but some have fallen asleep [in death].

But now [as things really are] Christ has in fact been raised from the dead, [and He became] the first fruits [that is, the first to be resurrected with an incorruptible, immortal body, foreshadowing the resurrection] of those who have fallen asleep [in death].