children. sons.
groves = Asherim (plural) See App-42.
the green trees. Some codices, with Aram, and Syriac, read "by every green tree".
upon. Some codices, with one early printed edition, Aramaean, and Syriac, read "and upon".
Related Commentaries of Jeremiah 17:2
Jeremiah 17:2
2 Whilst their children remember their altars and their groves by the green trees upon the high hills.