Ezekiel 44:26

And after he is cleansed, they shall reckon to him seven days.

Numbers 6:10-21

And on the eighth day he shall bring two turtle-doves, or two young pigeons to the priest, to the door of the tent of meeting.

Numbers 19:11-14

He who touches the dead body of any man shall be unclean seven days.

Hebrews 9:13-14

For if the blood of bulls and goats, and the ashes of a heifer, sprinkling those who were defiled, sanctifies for the purification of the flesh,

Treasury of Scripture Knowledge

Summary

And after he is cleansed, they shall reckon unto him seven days.

Bible References

General references

Numbers 6:10
And on the eighth day he shall bring two turtle-doves, or two young pigeons to the priest, to the door of the tent of meeting.
Numbers 19:11
He who touches the dead body of any man shall be unclean seven days.
Hebrews 9:13
For if the blood of bulls and goats, and the ashes of a heifer, sprinkling those who were defiled, sanctifies for the purification of the flesh,