So it came to pass, through her casual harlotry, that she defiled the land and committed adultery with stones and trees.
Jeremiah 3:9
Surrounding context
3:8 Then I saw that for all the causes for which backsliding Israel had committed adultery, I had put her away and given her a certificate of divorce; yet her treacherous sister Judah did not fear, but went and played the harlot also.
3:9 So it came to pass, through her casual harlotry, that she defiled the land and committed adultery with stones and trees.
3:10 And yet for all this her treacherous sister Judah has not turned to Me with her whole heart, but in pretense," says the LORD.