Immediately I was in the Spirit, and before me was a throne in heaven, and someone was sitting on it. The One who sat on the throne looked like precious stones, like jasper and carnelian. All around the throne was a rainbow the color of an emerald.
(Revelation 4:2, 3 NCV)

Researchers have found that consuming many cruciferous vegetables in the diet may help to prevent cancer.(1) Cruciferous vegetables are classified as the dark green colored leafy vegetables and are part of the Brassica genus of plants. The Bible says that the Lord is the One who heals us (Exodus 15:26) and He has promised to forgive all of our sins and heal all of our diseases.(Psalms 103:3) The One who heals us sits on the throne in heaven and chooses to surround Himself with an emerald green rainbow. The color green symbolizes new life and new growth. The most predominant color on the earth is green as the Lord chose to surround us with green plants and so the most predominant color on our dinner plates should be green. The Lord is the One who heals us as He reveals knowledge about the healing secrets of His creation.

1. Murillo G, Mehta RG. Cruciferous vegetables and cancer prevention. Nutrition and Cancer 2001;41(1-2):17-28.