Matthew 27:52f – Many bodies raised
27:52f And tombs were opened, and the bodies of many saints who had died were raised. (They came out of the tombs after his resurrection and went into the holy city and appeared to many people.)
The issue to be discussed here is the historicity (or otherwise) of this account.
So-called ‘mainstream’ critical scholarship regards it as ‘legendary’. According to Harper’s Bible Commentary, for example,
…‘One wonders what the resurrected saints were doing between Good Friday and Easter.
