Numbers 19:16
Whoever in the open field touches someone who was killed with a sword or who died naturally, or touches a human bone or a grave, shall be unclean seven days.
Numbers 31:19
Encamp outside the camp seven days. Whoever of you has killed any person and whoever has touched any slain, purify yourselves and your captives on the third day and on the seventh day.
Numbers 19:11
"Whoever touches the dead body of any person shall be unclean seven days.
Luke 11:44
Woe to you! For you are like unmarked graves, and people walk over them without knowing it."
Ezekiel 39:11-16
"On that day I will give to Gog a place for burial in Israel, the Valley of the Travelers, east of the sea. It will block the travelers, for there Gog and all his multitude will be buried. It will be called the Valley of Hamon-gog.