Adam Clarke on Jeremiah 2:23

See thy way in the valley - The valley of Hinnom, where they offered their own children to Moloch, an idol of the Ammonites.

A swift dromedary traversing her ways - Dr. Blayney translates, "A fleet dromedary that hath taken to company with her." Dr. Dahler rather paraphrases, thus: -

Semblable a une dromedaire en chaleur,

Qui court d'une tote a l'autre. "Like to a dromedary in her desire for the male,

Which runs hither and thither."

This is an energetic comparison; and shows the unbridled attachment of those bad people to idolatry, and the abominable practices by which it was usually accompanied.