When Moses brought the Ten Commandments down from Mount Sinai, he may have been high on a hallucinogenic plant, according to a new study by an Israeli psychology professor.

Writing in the British philosophy journal Time and Mind, Benny Shanon of Jerusalem’s Hebrew University said two plants in the Sinai desert contain the same psychoactive molecules as those found in plants from which the powerful Amazonian hallucinogenic brew ayahuasca is prepared.

The thunder, lightning and blaring of a trumpet which the Book of Exodus says emanated from Mount Sinai could just have been the imaginings of a people in an “altered state of awareness,” Shanon hypothesized.

“In advanced forms of ayahuasca inebriation, the seeing of light is accompanied by profound religious and spiritual feelings,” Shanon wrote.
“On such occasions, one often feels that in seeing the light, one is encountering the ground of all Being … many identify this power as God.”

Shanon wrote that he was very familiar with the affects of the ayahuasca plant, having “partaken of the … brew about 160 times in various locales and contexts.” He said one of the psychoactive plants, harmal, found in the Sinai and elsewhere in the Middle East, has long been regarded by Jews in the region as having magical and curative powers.

EXODUS; 3 Now Moses kept the flock of Jethro his father in law, the priest of Midian: and he led the flock to the backside of the desert, and came to the mountain of God, even to Horeb. 2 And the angel of the Lord appeared unto him in a flame of fire out of the midst of a bush: and he looked, and, behold, the bush burned with fire, and the bush was not consumed. 3 And Moses said, I will now turn aside, and see this great sight, why the bush is not burnt. 4 And when the Lord saw that he turned aside to see, God called unto him out of the midst of the bush, and said, Moses, Moses. And he said, Here am I. 5 And he said, Draw not nigh hither: put off thy shoes from off thy feet, for the place whereon thou standest is holy ground.

EXODUS 19; 16 On the morning of the third day there was thunder and lightning, with a thick cloud over the mountain, and a very loud trumpet blast. Everyone in the camp trembled. 17 Then Moses led the people out of the camp to meet with God, and they stood at the foot of the mountain. 18 Mount Sinai was covered with smoke, because the Lord descended on it in fire. The smoke billowed up from it like smoke from a furnace, and the whole mountain trembled violently. 19 As the sound of the trumpet grew louder and louder, Moses spoke and the voice of God answered him.