12 is the number of gates of the holy city of New Jerusalem,
And upon the 12 gates are 12 angels,
And 12 names written thereon, are the names of the 12 tribes of the sons of Israel. And the wall of the city are 12 foundations
And in them the names of the 12 apostles of the Lamb.
And he measured the city with the reed, 12 thousand furlongs.
And he measured the wall thereof, a hundred and forty and four cubits (12 times 12), which is the measure of a man, that is, of an angel.
And on the 12 gates are 12 pearls.
(From Rev. 21:2, 12, 14, 16, 17, 21);

In the midst of the street of it, and on this side of the river and on that was the tree of life, bearing twelve fruits, yielding its fruit every month (Rev. 22:2);

the twelve fruits are all things of charity.

[4] In Matthew:--

Jesus said, Verily I say unto you, that ye who have followed Me in the regeneration, when the Son of man shall sit upon the throne of His glory, ye also shall sit upon twelve thrones, judging the twelve tribes of Israel (Matthew 19:28);

here apostles are not meant by apostles, nor thrones by thrones, nor tribes by tribes, but all things that are of faith (AC 2129). Moreover in the Word of the Old Testament, where twelve tribes are mentioned, it is all things of the church that are signified; and the case is the same with the twelve stones according to the names of the twelve tribes of Israel in the Urim and Thummim (Exod. 28:21); and with the twelve loaves of the show bread set in order upon the table (Lev. 24:5, 6); and so in other instances.

From the Spiritual Meaning of 12.



12 is a number God has ordained for His awesome signs and wonders.

Those who know how to use numbers in the mathematics of life are ahead of those who have not realized the power of numbers.