R. Laird Harris writes, “The Hebrew alphabet did not have vowels. At a later stage—probably after it had ceased to be a living language—certain of the weaker consonants were employed as vowel letters to mark long or especially significant vowels. Finally, during the early Middle Ages, an intricate system of vowel points, which involved marking all the vowels very carefully, was invented.” Harris, R. Laird. Inspiration and Canonicity of the Scriptures. Greenville, SC, 1995. 75.