'Cleansed' in the Bible

Son of man, say unto her, Thou art the land that is not cleansed, nor rained upon in the day of indignation.

Thus saith the Lord GOD; In the day that I shall have cleansed you from all your iniquities I will also cause you to dwell in the cities, and the wastes shall be builded.

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