In Hebrew and possibly other abjads, there is a concept called "gematria", which is, in short, that each letter has a numerical value proceeding linearly through the alphabet, such that א equals 1, ב equals 2, and so on.
This produces many classical commentaries on these numerical values, and there are many theologically significant interrelationships between words. As a very simple example, the sum of the values for the Hebrew word for father and mother is equal to the value of the word child, as below:
Father: אב, av
Mother: אם, em
Child: ילד, yeled
Av equals 3, em equals 41, and yeled equals 44.
There are many more examples, but this is one of the simplest. How could such a thing have arisen naturally? As far as I know it does not occur in other languages, and seems too complex to be coincidence.