G-D
YHVH
vuvh
Gramatria
Letters in Hebrew are also numbers and these numbers have a special significance.
The four letter name of G-d gives us a total of 26:
h (yod) = 10
v (heh) = 5
u (vav) = 6
v (heh) = 5
There were 10 generations from Adam to Noah and 10 generations from Noah to Abraham. From Abraham’s birth until the Torah (law-teaching-word) was given on Sinai there were 6 generations for a total of 26 generations.
For 26 generations G-d allowed a world to exist without obedience to His Will, as an act of compassion whose very name is “26”