A numeral system based on ancient Hebrew and Greek:

A = 1, B = 2, C = 3, D = 4, E = 5, F = 6, G = 7, H = 8, I = 9, J = *Χ, K = *Ɛ
L = *10, M = *20, N = *30, O = *40, P = *50, Q = *60, R = *70, S = *80, T = *90, U = *Χ0, V = *Ɛ0
W = *100, X = *200, Y = *300, Z = *400

In case anyone is looking for a divine meaning in the numerology, the most interesting thing I've found so far is that "God" is "fallible" (both have a numeric value of *4Ɛ).