Genesis 1:29, 1:30
And God said, Behold, I have given you every herb bearing seed, which is upon the face of all the earth and every tree, in the which is the fruit of a tree yielding seed; to you it shall be for meat. And to every beast of the earth, and to every fowl of the air, and to every thing that creepeth upon the earth, wherein there is life, I have given every green herb for meat: and it was so. (King James Version)
This does not mean all herbs except Cannabis and Hemp. Cannabis and Hemp have been used in mankind's daily lives for thousands of years. Cannabis and Hemp are also the main ingredient in many of the healing oils and ointments used by Jesus, and given to us by God, in the bible. Exodus 30:22-30