The Bible is not just a book of faith. The writing of the Old Testament is said to have commenced around 1200 BC. The New Testament writing took place in the 1st century AD. Trees, herbs, and nature were integral to life and times during that period. Let me share some of the verses that I found to be relevant to plants and herbs.
“The trees that are fed and nourished by the water that flows from the sanctuary have nourishing and healing properties. And by the river on its bank, on one side and on the other, will grow all [kinds of] trees for food. Their leaves will not wither, and their fruit will not fail. They will bear every month because their water flows from the sanctuary, and their fruit will be for food and their leaves for healing” (Ezekiel 47:12).
Hebrews 6:7 “For ground that drinks the rain which often falls on it and brings forth vegetation useful to those for whose sake it is also tilled, receives a blessing from God;” demonstrates the value that society placed on vegetation.
The Book of Jubilee 10:12–13 states, “As we explained to Noah all the medicines of their diseases, together with their seductions, how he might heal them with herbs of the earth. And Noah wrote down all things in a book as we instructed him concerning every kind of medicine. Thus the evil spirits were precluded from (hurting) the sons of Noah.”
Sirach 38:4–5 and 7–8 state, “The Lord created medicines out of the earth, and the sensible will not despise them. Was not water made sweet with a tree in order that its power might be known? … By them, the physician heals and takes away pain; the pharmacist makes a mixture from them.”

References:
Holy Herbs: Modern Connections to Ancient Plants

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