Green
The color green is almost exclusively used in connection with plants in the Bible, and the meaning is closely connected to the meaning of plants as well. Plants, in general, represent facts, knowledge that we can gather from the world. Green plants are ones that are alive and growing. Since life represents love and goodness, it makes sense that green plants are facts that have the potential for good use. It also indicates that they are the kinds of things we learn through directly through our senses, since to identify green plants we need to actually see the greenness.
(Referenser: Apocalypse Explained 507; Apocalypse Revealed 426; Arcana Coelestia 7691)
Deuteronomy 8:2-4
2
You shall remember all the way which Yahweh your God has led you these forty years in the wilderness, that he might humble you, to prove you, to know what was in your heart, whether you would keep his commandments, or not.
3
He humbled you, and allowed you to hunger, and fed you with manna, which you didn't know, neither did your fathers know; that he might make you know that man does not live by bread only, but by everything that proceeds out of the mouth of Yahweh does man live.
4
Your clothing didn't grow old on you, neither did your foot swell, these forty years.
