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.

(References: Apocalypse Explained 507; Apocalypse Revealed 426; Arcana Coelestia 7691)

276. THE STATE OF INNOCENCE OF ANGELS IN HEAVEN.

What innocence is and its nature few in the world know, and those who are in evil know nothing about it. It is, indeed, visible to the eyes, as seen in the face, speech and movements, particularly of children; and yet what innocence is, and especially that it is that in which heaven is stored up in man is unknown. In making this known let us proceed in order, and consider first the innocence of childhood, then the innocence of wisdom, and lastly the state of heaven in regard to innocence.