Albert Barnes Commentary 1 Kings 13:30

"And he laid his body in his own grave; and they mourned over him, [saying], Alas, my brother!" — 1 Kings 13:30 (ASV)

He laid his carcase in his own grave—As Joseph of Arimathaea did with the body of our Lord (Matthew 27:60).

The possession of rock-hewn tombs by families or individuals was common among the Jews from their first entrance into the Holy Land until their final expulsion. A sepulchre usually consisted of an underground apartment, into which a number of long, narrow “loculi,” or cells, opened side by side, each adapted to receive one body. These cells were 6 or 7 feet long, 2 feet wide, and 3 feet high, and were commonly closed by a stone placed at the end of each. Many such tombs still exist in Palestine.