'Tombs' in the Bible

Here, on landing, He was met by one of the townsmen who was possessed by demons--for a long time he had not put on any garment, nor did he live in a house, but in the tombs.

Alas for you! for you are like the tombs which lie hidden, and the people who walk over them are not aware of their existence."

Alas for you! for you repair the tombs of the Prophets, whom your forefathers killed.