'Every Green Tree' in the Bible

“For long ago you broke your yoke [in deliberate disobedience]And tore off your bonds [of the law that I gave you];You said, ‘I will not serve and obey You!’For on every high hillAnd under every green treeYou have lain down [in idolatrous worship] like a [compliant] prostitute.

Moreover, the Lord said to me in the days of Josiah the king [of Judah], “Have you seen what that faithless Israel has done—how she went up on every high hill and under every green tree, and there she was a prostitute?

‘Only understand fully and acknowledge your wickedness and guilt,That you have rebelled (transgressed) against the Lord your GodAnd have scattered your favors among strangers under every green tree,And you have not obeyed My voice,’ says the Lord.