'Under Every Green Tree' in the Bible

Ye shall utterly destroy all the places, wherein the nations which ye shall possess served their gods, upon the high mountains, and upon the hills, and under every green tree:

For they also built them high places, and images, and groves, on every high hill, and under every green tree.

And he sacrificed and burnt incense in the high places, and on the hills, and under every green tree.

And they set them up images and groves in every high hill, and under every green tree:

He sacrificed also and burnt incense in the high places, and on the hills, and under every green tree.

Enflaming yourselves with idols under every green tree, slaying the children in the valleys under the clifts of the rocks?

For of old time I have broken thy yoke, and burst thy bands; and thou saidst, I will not transgress; when upon every high hill and under every green tree thou wanderest, playing the harlot.

The LORD said also unto me in the days of Josiah the king, Hast thou seen that which backsliding Israel hath done? she is gone up upon every high mountain and under every green tree, and there hath played the harlot.

Only acknowledge thine iniquity, that thou hast transgressed against the LORD thy God, and hast scattered thy ways to the strangers under every green tree, and ye have not obeyed my voice, saith the LORD.

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, in all the tops of the mountains, and under every green tree, and under every thick oak, the place where they did offer sweet savour to all their idols.