Numbers 19:16

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

Numbers 31:19

And encamp outside the camp seven days; whoever hath killed a person, and whoever hath touched any slain; ye shall 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, for ye are like whited sepulchres, which appear beautiful outwardly, but within are full of dead men's bones and all uncleanness.

Numbers 19:11

He that toucheth a dead person, any dead body of a man, shall be unclean seven days.

Luke 11:44

Woe unto you, for ye are as the sepulchres which appear not, and the men walking over them do not know it.

Ezekiel 39:11-16

And it shall come to pass in that day, that I will give unto Gog a place there for burial in Israel, the valley of the passers-by to the east of the sea; and it shall stop the way of the passers-by; and there shall they bury Gog and all the multitude; and they shall call it, 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
He that toucheth a dead person, any dead body of a man, shall be unclean seven days.
Numbers 31:19
And encamp outside the camp seven days; whoever hath killed a person, and whoever hath touched any slain; ye shall purify yourselves on the third day, and on the seventh day, you and your captives.

A bone

Ezekiel 39:11
And it shall come to pass in that day, that I will give unto Gog a place there for burial in Israel, the valley of the passers-by to the east of the sea; and it shall stop the way of the passers-by; and there shall they bury Gog and all the multitude; and they shall call it, Valley of Hamon-Gog.

A grave

Matthew 23:27
Woe to you, scribes and Pharisees, hypocrites, for ye are like whited sepulchres, which appear beautiful outwardly, but within are full of dead men's bones and all uncleanness.
Luke 11:44
Woe unto you, for ye are as the sepulchres which appear not, and the men walking over them do not know it.

General references

Leviticus 7:19
And the flesh that toucheth anything unclean shall not be eaten; it shall be burned with fire. And as to the flesh, all that are clean may eat the flesh.
Leviticus 11:39
And if any beast which is to you for food die, he that toucheth the carcase thereof shall be unclean until the even.