Ezekiel 44:26

And when he is cleansed, there shall be reckoned unto him seven days:

Numbers 6:10-21

And the eighth day he shall bring two turtles or two young pigeons to the priest, unto the door of the tabernacle of witness.

Numbers 19:11-14

"'He that toucheth any dead person, shall be unclean seven days.

Hebrews 9:13-14

For if the blood of oxen, and of goats, and the ashes of a heifer, when it was sprinkled, purified the unclean, as touching 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 the eighth day he shall bring two turtles or two young pigeons to the priest, unto the door of the tabernacle of witness.
Numbers 19:11
"'He that toucheth any dead person, shall be unclean seven days.
Hebrews 9:13
For if the blood of oxen, and of goats, and the ashes of a heifer, when it was sprinkled, purified the unclean, as touching the purifying of the flesh: