In his article, Medical Cannabis — A Vastly Underutilized Therapeutic Option?, Dr. Mercola recognizes the DEA's decision in December, 2016 to reclassify CBD as a schedule 1 controlled substance along with heroin, LSD and other drugs deemed too dangerous for public consumption as a tragic step backwards. Mercola believes this decision must be the result of influence or control of the pharmaceutical industry.
Dr. Weil makes the case for a Special Creation of the endocannabinoid system in humans calling it a Teleological argument not usually addressed by medical science.
The biggest support found for using cannabis in the Scriptures is that God created all the seed-bearing plants - including the green plants - for man and animal to use as food. Genesis 1:11,29,30. This is very significant since these Scriptures makes it clear that government has no authority to prohibit the people from growing and using cannabis. Cannabis is something God gave to all men as food for their health and well-being. It is a natural right and falls under the right to Life, Liberty, and the pursuit of Happiness protected in the United States Declaration of Independence. Certainly, a very strong right to adequate medicine must, as commonsense rule, follow from this declaration.
This right to cannabis is doubly strengthened by the fact that cannabis is a much safer and effective medicine than what is put out by the pharmaceutical companies themselves. This includes the cannabis strains containing high levels of Tetrahydrocannabinol (THC ) that are psychoactive and will cause intoxication, but will never cause a death through overdose or result in a severe, debilitating side effect. The strains containing high levels of cannabidiol (CBD) with very low levels of THC are the non-psychoactive strains that won't get you intoxicated are even safer yet. CBD is also considered by some to have more therapeutic benefits than THC. Our government cannot justify its prohibition of CBD with any truthful or logical reason.
It must be considered that God intentionally created cannabis with these powerful medicinal properties intending for it to be used by man to its fullest. The much talked about endocannabinoid system that's an integral part of our bodies must also have been specially designed by God to respond so well to the cannabinoids in cannabis. See The Endocannabinoid System, at https://www.projectcbd.org/endocannabinoid-system. For this reason, a First Amendment right to use cannabis as a part of one's religious practice is very strong. The government must show a compelling interest before it can prohibit a particular religious practice. They cannot give an adequate justification when alcohol and tobacco is allowed to be sold and doctors are allowed to prescribe dangerous and addictive pharmaceutical drugs. This would be an equal protection of the laws violation most obviously.
It's interesting to note the similarities of cannabis to Jesus Christ. Jesus also was put on this earth by God, the Father, and given great healing powers. He went out using these God-given powers to freely heal and reduce the suffering of many people and showing His great mercy on the masses. Matthew 4:23-24; 9:12-13, 35-36. As a result of his good deeds, he was persecuted by the Pharisees and Sadducees, who held great power and influence in the Jewish community. John 7:23. Cannabis suffers the same problem and is often called a persecuted plant. See, for example, Cannabis: The Persecuted Plant.
The framers of our constitution had a strong belief in the God of the Bible and freedom from unreasonable governmental interference in the affairs of men.
If they could be brought back today, I'm sure they would be astonished that cannabis is prohibited.
See, for example, http://www.faithfacts.org/christ-and-the-culture/the-bible-and-government
There have been some scholars who have claimed that the ancient Israelites during the time of Moses used cannabis. The implication here is that they were getting intoxicated or high regularly. They point to Exodus 30:22-29, claiming calamus, one of the oils mentioned, was, in fact, Kaneh-Bosm or cannabis. See, for example, Jesus & Cannabis, at https://patients4medicalmarijuana.wordpress.com/marijuana-info/marijuana-in-the-bible/jesus-cannabis/, and Kaneh Bosm: The Hidden Story of Cannabis in the Old Testament, at https://www.youtube.com/watch?v=w0bH6Z_OSp8. This idea fails for the reason that there's nothing to be found in the Scriptures showing or describing the use of cannabis as an intoxicant as you find with alcoholic beverages. See Alcohol in the Bible, at https://en.wikipedia.org/wiki/Alcohol_in_the_Bible. You must also consider that the God of the Bible was clearly opposed to drunkness. Isaiah 5:11. And, the Nazirite vow is a good example of God setting a standard of abstinence for those willing to take the vow. Numbers 6:1-4. This, however, does not mean Jesus sinned because he used wine in moderation (Some argue Jesus drank a non-alcoholic wine). Moderation is acceptable and God has created no law against drinking alcohol in moderation.
What I believe is likely the case, is that the ancient Israelites were using a high CBD, low THC strain of cannabis that didn't cause any intoxication. They utilized these strains for food, oils, incense as well as for other useful materials. Later, either through intentional plant breeding practices, a natural development or a combination of the two, the high THC strains started to appear and gain in strength and popularity. It's interesting to note that it was Israeli scientists who first developed (or brought back) the high CBD strain. See Israeli scientists create medical marijuana strain that won't get patients high.
More Scriptural support can be found for use of cannabis as medicine in the proverbial sayings of King Lemuel in Proverbs 31:6-7. Here a king advocates the use of alcohol as an intoxicant for those who are dying and for those who are suffering mental pain and are economically stressed (This, of course, must be understood to be a wisdom teaching of a king and not a command or a law from God). Being that cannabis is much safer than alcohol and pharmaceutical drugs, it would certainly be much wiser to use it before resorting to alcohol and other dangerous drugs that can result in severe addiction, and, in too many cases, death. This is only commonsense!
Some Christians are pointing out that pharmaceutical drugs are the work of sorcery and witchcraft and those under their influence are under a spell. If pharmaceutical drugs are the work of sorcery, then Christians would clearly have a duty to help those who are weak and being oppressed by the spells of these drugs. Psalm 82:2-4. Prayer, encouraging repentance, along with cannabis and other natural and alternative health remedies, are an excellent means of accomplishing this task.
 And God said, “Let the earth sprout vegetation, plants yielding seed, and fruit trees bearing fruit in which is their seed, each according to its kind, on the earth.” And it was so.  Then God said, “I give you every seed-bearing plant on the face of the whole earth and every tree that has fruit with seed in it. They will be yours for food.  And to all the beasts of the earth and all the birds in the sky and all the creatures that move along the ground—everything that has the breath of life in it—I give every green plant for food.” And it was so.
 Then the Lord said to Moses,  “Take the following fine spices: 500 shekels of liquid myrrh, half as much (that is, 250 shekels) of fragrant cinnamon, 250 shekels of fragrant calamus,  500 shekels of cassia—all according to the sanctuary shekel—and a hin of olive oil.  Make these into a sacred anointing oil, a fragrant blend, the work of a perfumer. It will be the sacred anointing oil.  Then use it to anoint the tent of meeting, the ark of the covenant law,  the table and all its articles, the lampstand and its accessories, the altar of incense,  the altar of burnt offering and all its utensils, and the basin with its stand.  You shall consecrate them so they will be most holy, and whatever touches them will be holy.
 Woe to those who rise early in the morning to run after their drinks, who stay up late at night till they are inflamed with wine.
The Lord said to Moses, 2 “Speak to the Israelites and say to them: ‘If a man or woman wants to make a special vow, a vow of dedication to the Lord as a Nazirite, 3 they must abstain from wine and other fermented drink and must not drink vinegar made from wine or other fermented drink. They must not drink grape juice or eat grapes or raisins. 4 As long as they remain under their Nazirite vow, they must not eat anything that comes from the grapevine, not even the seeds or skins.
 Let beer be for those who are perishing, wine for those who are in anguish!  Let them drink and forget their poverty and remember their misery no more.
 “How long will you defend the unjust and show partiality to the wicked?  Defend the weak and the fatherless; uphold the cause of the poor and the oppressed.  Rescue the weak and the needy; deliver them from the hand of the wicked.
 Jesus went throughout Galilee, teaching in their synagogues, proclaiming the good news of the kingdom, and healing every disease and sickness among the people.  News about him spread all over Syria, and people brought to him all who were ill with various diseases, those suffering severe pain, the demon-possessed, those having seizures, and the paralyzed; and he healed them.
[12 On hearing this, Jesus said, “It is not the healthy who need a doctor, but the sick.  But go and learn what this means: ‘I desire mercy, not sacrifice.' For I have not come to call the righteous, but sinners.”
 Jesus went through all the towns and villages, teaching in their synagogues, proclaiming the good news of the kingdom and healing every disease and sickness.  When he saw the crowds, he had compassion on them, because they were harassed and helpless, like sheep without a shepherd.
 Now if a boy can be circumcised on the Sabbath so that the law of Moses may not be broken, why are you angry with me for healing a man’s whole body on the Sabbath?