Albert Barnes Commentary Jeremiah 7:24

"But they hearkened not, nor inclined their ear, but walked in [their own] counsels [and] in the stubbornness of their evil heart, and went backward, and not forward." — Jeremiah 7:24 (ASV)

Imagination - Better, as in the margin.

And went backward - literally, as in the margin; that is, they turned their back upon Me to follow their own devices.