4 horsemen, 12 apostles, 10 commandments, 7 deadly sins, 7 holy virtues, 3 aspects of the trinity (the father, the son and the holy spirits), 36 Lamed-Vav Tsadikim, ...

Numerology has been heavily used by the Torah and the Bible.

According to the Talmud, there are meanings behind numbers: https://en.wikipedia.org/wiki/Significance_of_numbers_in_Jud...

So, 6 (days of creation) * 7 (completion) = 42 (one of the letter in one of the name of God)

Or any other combinations you want, because numerology has no true meaning. It's just playing with numbers.