4 | The tetrad and 4 being the "Number of Numbers" according to Pythagoras

The following is courtesy of Manly P. Hall:
http://www.sacred-texts.com/eso/sta/sta16.htm

Remember, the fourth book of the Bible is titled Numbers.

4, the number of all numbers?

Notice the overlap in gematria with '68'.  Another good 68 is planet.  Planet = 68

If you read above, 4 is the middle when counting to 7.

123...4....567

There were 7 planets in ancient times, earth wasn't one of them.  They were as follows:

Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn (the things that moved in relation to the stars)

Mathematics and the Planets are what the Greeks were largely about.

Think about numbers with '4' numerology.

4
13 (Star)
22 (Master Builder)
31 (4th number with 4 numerology)
40 (Mathematics)
49 (Pythagoras = 49)
58 (Pythagoras = 58)
67
76
85
94
103
112 (Mathematics)
121
130 (Pythagoras)
139
148
157
166
175
184
193
202
211
220

And so son...