Matthew 27:52 in the King James Version
And the graves were opened; and many bodies of the saints which slept arose,
Context
51 Behold, the veil of the temple was torn in two from the top to the bottom. The earth quaked and the rocks were split.
52 The tombs were opened, and many bodies of the saints who had fallen asleep were raised;
53 and coming out of the tombs after his resurrection, they entered into the holy city and appeared to many.