Isaiah 57:5

57:5 you who practice ritual sex under the oaks and every green tree,

who slaughter children near the streams under the rocky overhangs.

Jeremiah 3:13

3:13 However, you must confess that you have done wrong,

and that you have rebelled against the Lord your God.

You must confess that you have given yourself to foreign gods under every green tree,

and have not obeyed my commands,’ says the Lord.