'Grandfathers' in the Bible

Then your houses shall be filled and the houses of all your servants and the houses of all the Egyptians, something which neither your fathers nor your grandfathers have seen, from the day that they came upon the earth until this day.’” And he turned and went out from Pharaoh.

All those chosen to be gatekeepers at the thresholds were 212. They were enrolled by their genealogies in their villages [around Jerusalem], these men [whose grandfathers] David and Samuel the seer had appointed to their official duty.