Properties of the number 18

Symbolism

Symbolize those which did not want to receive the Name of Jesus, or who having received it, did not persevere. Thibaut Of Langres arrives to this conclusion because of the fact that the first two letters of the Name of Jesus, iota and eta, according to the Greek manner to note the numbers, makes 18.
For R. Allendy, it represents "the ratios of the Nirvana world 8 with the whole of the Cosmos 10. The Nirvana is dispersed in the Cosmos, in a apparent involution, by an act of solidarity and love - 1 + 8 = 9". It would also constitute the realization of the love, the providence in action, 3 x 6 = 18.
The number 18 is in relation, in cabalistic numerology, with emotions, the secrets, the lie, the selfishness, the criminality, the destruction, the disposition of accidents, with the difficulties, the sickness, the danger.
According to Guy Tarade, it is the number of Jesus Christ.

Bible

The eighteen persons killed by the fall of the tower at Siloam. (Lk 13,4)
Jesus delivered a woman having for eighteen years a spirit that cripped her infirm. (Lk 13,11)
The Israelites were enslaved to Eglon king of Moab for eighteen years. (Jg 3,14)
The Ammonites oppressed Israelites for eighteen years. (Jg 10,8)
Rehoboam had eighteen wives. (2 Ch 11,21)
The construction of the Temple built by Solomon on the Moriah mount, to be used as tabernacle to the Ark of the Covenant, lasted eighteen years.

General

It is told that Jesus began to realize Who and what He was at eighteen years old whereas energies of the Universal Conscience of Christ started to circulate in Him.
The Virgin Mary was often adorned by eighteen seraphes when she was elevated to the sky to be placed at the right of his Son on the throne of the Holy Trinity, according to visions of Mary Agreda.
In Lourde, in 1858, the Virgin appears eighteen times.
The eighteen psalms which wrote Solomon in the Psalms of Solomon, and the eighteen Blessings of the prayer of Jews found in the "Shermone-Esre", writings of the library of Qumran.
The card 18 in the tarot corresponds to "the moon".
A year counted eighteen months, in the religious calendar Maya, composed of twenty days each one and giving a rest of 5 days.
The souls of the Just make to go up eighteen perfume columns, and forty nine different odors rise each day until the area called Eden.
The bouddhic literature mentions the eighteen conditions of a Buddha.
The Bhagavad-Gita, treaty of Yoga, has eighteen chapters.
The Bonzes used for their prayers a small rosary having 18 grains.
We find eighteen sounds in the Greek musical teaching.
The alphabet of the trees used by the druids for divinatory uses had eighteen letters, each letter deriving its name from the tree of which it is the initial. Composed of 5 vowels and 13 consonants, it formed a seasonal magic calendar of trees.
Some modern astronomers begin to believe that our Sun could turn itself around the Sirius star, as thought elsewhere the ancient Sumerian people, with a revolution period of eight hundred thousand years. During this period, the Earth would be eighteen times exactly aligned with the Sun and Sirius.
View from the Earth, the apparent diameter of the Moon, as well as its angular velocity, do not appear always the same since the Moon moves on an elliptic orbit rather than circular. This difference in apparent diameter reached per moments up to 1/18. For the same reasons, the apparent diameter of the Sun varies only of 1/60.
The average number of breathing of the man per minute is eighteen.
The Saturn planet has eighteen satellites.
Anniversary of marriage: tin weddings.

Occurrence

The number 18 is used 26 times in the Bible.
The number 25000 is used 18 times in the Bible.
The fourteen epistles of Paul use on the whole 18 different numbers, which are numbers 1 to 3, 5, 7, 8, 12, 14, 15, 39, 40, 60, 100, 430, 500, 7000, 10000 and 23000.