Letter of Jeremiah 6:21

21 when their faces have been blackened by the smoke of the temple.

Letter of Jeremiah 6:21 In-Context

19 They light more lamps for them than they light for themselves, though their gods can see none of them.
20 They are just like a beam of the temple, but their hearts, it is said, are eaten away when crawling creatures from the earth devour them and their robes. They do not notice
21 when their faces have been blackened by the smoke of the temple.
22 Bats, swallows, and birds alight on their bodies and heads; and so do cats.
23 From this you will know that they are not gods; so do not fear them.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.