This is an extremely short list and, Lord willing, will be followed by additional items concerning the Biblical use of numbers.
No. 1 -- Just as number 1 is the foundation of all mathematics, so Yahweh is the beginning of all. Number 1 therefore in Scripture pertains to God.
No. 2 -- The number of separation, witness or opposites.
No. 3 -- The number of Divine perfection. The complete number, the first perfect number
No. 4 -- The number of creative work -- the number of organization, sometimes referred to as the world number
No. 5 -- The number of grace -- free gift of God -- the number of mercy.
No. 6 -- The number of flesh or pertaining to that which will be destroyed