'Under Every Green Tree' in the Bible

For of old time I have broken thy yoke, and burst thy bonds; and thou saidst, I will not serve; for upon every high hill and under every green tree thou didst bow thyself, playing the harlot.

Moreover Jehovah said 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 Jehovah thy God, and hast scattered thy ways to the strangers under every green tree, and ye have not obeyed my voice, saith Jehovah.