Numbers 19:16

Anyone {in the open field} who touches {one who has been slain}, or a corpse, or a bone of a person, or a burial site, he will be unclean for seven days.

Numbers 31:19

And you, camp outside the camp seven days; all who killed a person and all who touched the slain purify yourselves on the third day and on the seventh day, you and your captives.

Matthew 23:27

"Woe to you, scribes and Pharisees--hypocrites!--because you are like whitewashed tombs which on the outside appear beautiful, but on the inside are full of the bones of the dead and of everything unclean!

Numbers 19:11

" 'The one who touches a corpse of {any person} will be unclean for seven days.

Luke 11:44

Woe to you, because you are like unmarked graves, and the people who walk over [them] do not know [it]!

Ezekiel 39:11-16

" '"{And then} on that day I will give to Gog {a grave there} in Israel, The Valley of the Travelers, east of the sea, and it {will block} the travelers and Gog and all of his hordes they will bury there, and they will call [it] the Valley of {Hamon-Gog}.

Treasury of Scripture Knowledge

Summary

And whosoever toucheth one that is slain with a sword in the open fields, or a dead body, or a bone of a man, or a grave, shall be unclean seven days.

A bone

General references

Bible References

Toucheth

Numbers 19:11
" 'The one who touches a corpse of {any person} will be unclean for seven days.
Numbers 31:19
And you, camp outside the camp seven days; all who killed a person and all who touched the slain purify yourselves on the third day and on the seventh day, you and your captives.

A bone

Ezekiel 39:11
" '"{And then} on that day I will give to Gog {a grave there} in Israel, The Valley of the Travelers, east of the sea, and it {will block} the travelers and Gog and all of his hordes they will bury there, and they will call [it] the Valley of {Hamon-Gog}.

A grave

Matthew 23:27
"Woe to you, scribes and Pharisees--hypocrites!--because you are like whitewashed tombs which on the outside appear beautiful, but on the inside are full of the bones of the dead and of everything unclean!
Luke 11:44
Woe to you, because you are like unmarked graves, and the people who walk over [them] do not know [it]!

General references

Leviticus 7:19
And the meat that touches anything unclean must not be eaten; it must be burned with fire, and as for the [clean] meat, anyone who is clean may eat the meat.
Leviticus 11:39
" 'And when {one of the animals} dies that is for you to eat, the one who touches its dead body shall become unclean until the evening.