“The universe was created for the sake of man, i.e. adam, who represents the tithe of one tenth (in Hebrew, “maaser”) of Truth, “emet”. [“Adam” in Hebrew is spelled alef, dalet, mem.] The numerical value of the letter mem in Adam’s name (40) is 10% of the numerical value of tav (400) in the Hebrew word for “Truth” (emet), and the letter dalet (= 4) in Adam’s name is one tenth of the letter mem (=40) in the word “emet”. The letter alef in “emet” is, of course, irreducible.
The serpent was the first to introduce the concept of lying into the universe by claiming that G-d had eaten from the Tree of Knowledge before being able to create the universe. Proverbs 16:28 describes the serpent as saying, “A quarrelsome one alienates his friend.”
By removing the first letter of the word “emet”, alef, all that you are left with is the word “met”, meaning “dead”. When you remove the first letter from the word “adam”, you are left with the word “dam”, meaning “blood”. Anyone who is able to protest wrongdoing with a chance of success and fails to do so has blood inscribed on his head. Those were the people who, though they are described as having observed the commandments of the Torah “from alef to tav”, i.e. “from A to Z”, were not pious in the true sense of the word since they failed to admonish the other members of their society. Under such circumstances the letter mem which ought to symbolize a letter from the word for “truth”, “emet”, symbolizes the word “death”, “mavet”, instead.”