Paul the Apostle went blind for three days after his conversion to Christianity. Judaism
Noah had three sons: Ham, Shem and Japheth
The Three Patriarchs: Abraham, Isaac and Jacob
The prophet Balaam beat his donkey three times. The prophet Jonah spent three days and nights in the belly of a large fish
Three divisions of the Written Torah: Torah (Five Books of Moses), Neviim (Prophets), Ketuvim (Writings)
Three divisions of the Jewish people: Kohen, Levite, Yisrael
Three daily prayers: Shacharit, Mincha, Maariv
Three Shabbat meals
Shabbat ends when three stars are visible in the night sky
Three Pilgrimage Festivals: Passover, Shavuot, Sukkot
Three matzos on the Passover Seder table
The Three Weeks, a period of mourning bridging the fast days of Seventeenth of Tammuz and Tisha BAv
Three cardinal sins for which a Jew must die rather than transgress: idolatry, murder, sexual immorality
Upsherin, a Jewish boys first haircut at age 3
A Beth din is composed of three members
Potential converts are traditionally turned away three times to test their sincerity
In the Jewish mystical tradition of the Kabbalah, it is believed that the soul consists of three parts, with the highest being neshamah ("breath"), the middle being ruach ("wind" or "spirit") and the lowest being nefesh ("repose"). Sometimes the two elements of Chayah ("life" or "animal") and Yechidah ("unit") are additionally mentioned. In the Kabbalah, the Tree of Life (Hebrew: Etz ha-Chayim, עץ החיים) refers to a latter 3-pillar diagrammatic representation of its central mystical symbol, known as the 10 Sephirot.
Percutaneous radiofrequency thermorhizotomy may also be effective as may stereotactic radiosurgery; however the effectiveness decreases with time.Surgical procedures can be separated into non-destructive and destructive:

Non-destructive
Microvascular decompression – this involves a small incision behind the ear and some bone removal from the area. An incision through the meninges is made to expose the nerve. Any vascular compressions of the nerve are carefully moved and a sponge-like pad is placed between the compression and nerve, stopping unwanted pulsation and allowing myelin sheath healing. Destructive
All destructive procedures will cause facial numbness, post relief, as well as pain relief. Percutaneous techniques which all involve a needle or catheter entering the face up to the origin where the nerve splits into three divisions and then damaging this area, purposely, to produce numbness but also stop pain signals. These techniques are proven effective especially in those where other interventions have failed or in those who are medically unfit for surgery such as the elderly. Balloon compression – inflation of a balloon at this point causing damage and stopping pain signals. Glycerol injection – deposition of a corrosive liquid called glycerol at this point causes damage to the nerve to hinder pain signals. Radiofrequency thermocoagulation rhizotomy – application of a heated needle to damage the nerve at this point. Stereotactic radiosurgery is a form of radiation therapy that focuses high-power energy on a small area of the body

Support
Psychological and social support has found to play a key role in the management of chronic illnesses and chronic pain conditions, such as trigeminal neuralgia.