Verses with the word filth in the Old Testament (2 verses):

Isaiah 4:4
When the Lord shall have washed away the filth of the daughters of Zion, and shall have purged the blood of Jerusalem from the midst thereof by the spirit of judgment, and by the spirit of burning.

Nahum 3:6
And I will cast abominable filth upon thee, and make thee vile, and will set thee as a gazingstock.