'Every Green Tree' in the Bible

Then shall ye know that I am the LORD, when their slain men shall be among their idols round about their altars, upon every high hill, on all the tops of the mountains, and under every green tree, and under every thick oak, the place where they offered sweet savor to all their idols.

And say to the forest of the south, Hear the word of the LORD; Thus saith the Lord GOD; Behold, I will kindle a fire in thee, and it shall devour every green tree in thee, and every dry tree: the flaming flame shall not be quenched, and all faces from the south to the north shall be burned therein.