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 turtles, or two young pigeons, to the priest, to the door of the tabernacle of the congregation:

Numbers 19:11-14

He that toucheth the dead body of any man shall be unclean seven days.

Hebrews 9:13-14

For if the blood of bulls and of goats, and the ashes of a heifer sprinkling the unclean, sanctify to the purifying 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 turtles, or two young pigeons, to the priest, to the door of the tabernacle of the congregation:
Numbers 19:11
He that toucheth the dead body of any man shall be unclean seven days.
Hebrews 9:13
For if the blood of bulls and of goats, and the ashes of a heifer sprinkling the unclean, sanctify to the purifying of the flesh: