'Green' in the Bible
"For of old time I have broken your yoke, and burst your bonds; and you said, 'I will not serve;' for on every high hill and under every green tree you bowed yourself, playing the prostitute.
Moreover, Yahweh said to me in the days of Josiah the king, "Have you seen that which backsliding Israel has done? She has gone up on every high mountain and under every green tree, and there has played the prostitute.
Only acknowledge your iniquity, that you have transgressed against Yahweh your God, and have scattered your ways to the strangers under every green tree, and you have not obeyed my voice,' says Yahweh."
Yahweh called your name, A green olive tree, beautiful with goodly fruit: with the noise of a great tumult he has kindled fire on it, and its branches are broken.
while their children remember their altars and their Asherim by the green trees on the high hills.
For he shall be as a tree planted by the waters, who spreads out its roots by the river, and shall not fear when heat comes, but its leaf shall be green; and shall not be careful in the year of drought, neither shall cease from yielding fruit.