Because of the similarities between the two lines, some critical scholarship regards both Lamechs as one and the same individual. Many conservative scholars see no reason to confuse the two. One tradition from Genesis Rabba, relayed by Rashi's comment on Genesis 4:22, indicates that Na'amah, the daughter of Tselah and Lamech, son of Methushael, was the wife of Noah, the son of the other Lamech (son of Methuselah).
Genesis 5:25-31 records that the other Lamech, the son of Methuselah, was 182 years old at the birth of Noah, and that he lived for another 595 years after this, making his age at death 777 years (or just a few years before the Flood). With such numbers in this geneaological account, calculations such as those of Archbishop Ussher would suggest that Adam was still alive for about the first 50 years of Lamech's life.
| Name | Hebrew | Possible translations |
|---|---|---|
| Lamech | לָמֶךְ | Pauper (via Hebrew), Priest/Servant of God (via Akkadian) |
| Adah | עָדָה | Ornament, Dawn |
| Zillah | צִלָּה | Shadow |
| Jabal | יָבָל | Shepherd |
| Jubal | יוּבָל | The ram's horn, Musician, (also) stream |
| Tubal-Cain | תּוּבַל קַיִן | Thou wilt be brought of Cain (not translating Cain), Blacksmith (translating Cain) |
| Naamah | נַעֲמָה | Beautiful, Pleasure |
The older Septuagint, unlike the Masoretic Text, does not present the name Tubal rather than Tubal-Cain.
Translating the names as well, it is possible to read the text of the story of Lamech as:
The names are instead interpreted in the Midrash as an attack on polygamy. Adah is there interpreted as the deposed one, implying that Lamech spurned her in favour of Zillah, whose own name is understood to mean she shaded herself [from Zillah at Lamech's side]. The Midrash consequently regards Adah as having been treated as a slave, tyrannised by her husband, who was at the beck and call of his mistress, Zillah. It further goes on to claim that part of the immorality, which had led God to flood the earth, was the polygamy practised by Lamech and his generation.
The rabbinical tradition is just as condemning of Naamah. While a minority, such as Abba ben Kahana, see Naamah as having become Noah's wife, and being so named because her conduct was pleasing to God, the majority of classical rabbinical sources consider her name to be due to her singing pleasant songs in worship of idols.
However, this paucity of context did not stop a rabbinical tradition growing up around it. The Talmud and Midrash present an extensive legend, told, for example, by Rashi, in which Lamech first loses his sight from age, and had to be led by Tubal-Cain, the seventh generation from Cain. Tubal-Cain saw in the distance something that he first took for an animal, but it was actually Cain (still alive, due to the extensive life span of the antediluvians) whom Lamech had accidentally killed with an arrow. When they discovered who it was, Lamech, in sorrow, clapped his hands together, which (for an unclear reason) kills Tubal-Cain. In consequence, Lamech's wives desert him. A similar legend is preserved in the pseudepigraphic Second Book of Adam and Eve, Chapter XIII; in this version Tubal-Cain is not named, but is instead referred to as "the young shepherd." After Lamech claps his hands he strikes the young shepherd on the head. To ensure his death, he then smashed his head with a rock.
An alternate form of this negative attitude towards Lamech (such as Targum Pseudo-Jonathan) claims that even though Lamech did not kill anyone, his wives refused to associate with him and denied him sex, on the grounds that Cain's line was to be annihilated after seven generations. The poem is then given by Lamech to allay their fears. Other classical sources, such as Josephus, see the word seventy-seven as the number of sons which Lamech eventually had.
Extending on this classical view of Lamech is the Book of Moses, regarded in Mormonism as scripture. According to this Latter-day Saint text, Lamech entered into a secret pact with Satan, as had Cain before him, becoming a second Master Mahan. When Irad (an ancestor of Lamech) learned his secret and began to publicise it, Lamech murdered him. News of the murder was spread by Lamech's two wives, leading to his being cast out of society.