Yada, "knew." Hebrew's standard euphemism for sexual intimacy — not a coy substitute invented by squeamish translators, but the ordinary word the language itself reaches for. Every shelf version, old and new, renders it "knew"; the euphemism has passed into English so completely that it needs no explanation, which is itself worth noting on its first appearance.

Cain / "I have gotten." Qayin ("Cain") and qaniti ("I have gotten, acquired") share a root — Eve names her firstborn with a pun on the act of acquiring him, the same built-in-etymology device as ishah/ish and Chavah/chai in the two chapters before this one.

"With the LORD" — a notoriously slippery preposition. Et most often just marks a direct object (untranslatable, grammatical furniture) but can also mean "with, alongside" as it's read here. A minority of interpreters, ancient and modern, have taken Eve's line as the startling "I have gotten a man: the LORD" — treating et YHVH as apposition rather than accompaniment. This translation follows the mainstream reading, "with the LORD['s help]," matching every shelf version, but the ambiguity in the bare grammar is real, not invented.

Unlike Cain's name, the text never explains Abel's. Hevel is also the ordinary Hebrew word for "breath, vapor" — the same word Ecclesiastes will later hammer over and over as "vanity" (hevel havelim, "vapor of vapors"). Whether the name is meant to foreshadow how briefly he lives is a reasonable inference many readers have drawn, but it's an inference — the text itself, unlike its practice with Cain, Eve, and Seth, offers no explicit etymology here, so this translation keeps the name as a plain transliteration and lets the resonance stand unglossed, the way the Hebrew does.

A real asymmetry in the text, not an invented one. Abel's offering is described with two qualifying details — "the firstborn of his flock" and "their fat portions," the choicest parts by any ancient standard. Cain's is described with none: just "some of the fruit of the ground." The narrator doesn't say this is why God regarded one and not the other, but the wording isn't neutral either — it's the kind of detail every close reader across every tradition has noticed.

Why God preferred Abel's offering is never stated, and this translation doesn't supply an answer the text withholds. The main readings on offer across the centuries: a quality difference (as above); a difference in the offerer's heart or faith, a line of interpretation as old as the New Testament's own reading of this story (Hebrews 11:4); or a structural preference for a blood/animal offering over a grain offering, which some later Israelite sacrificial law arguably reflects but which this early narrative doesn't spell out. All are traditional readings, none is textually forced.

The payoff flagged at the end of Genesis 3. That note pointed out that teshuqah ("desire") paired with mashal ("rule, master") describes the woman's relationship to her husband in 3:16 — and here, one chapter later, the identical pairing describes sin's relationship to Cain: sin's desire is for him, and he is told to master it. Same two words, radically different relationship, back to back in the text's own sequence.

Rovets, "crouching." This is a predator's verb — used elsewhere of an animal lying in wait to pounce (compare its use of a lion in Genesis 49:9). Sin isn't pictured as an abstraction here but as a beast at the threshold, and the door (petach) it crouches at is Cain's own — proximity, not distance, is the danger.

A well-known gap in the Masoretic text. "Cain said to Abel his brother" is normally the setup for quoted speech in Hebrew narrative — and the sentence simply moves on to "and when they were in the field," with no words of Cain's actually recorded. Several ancient witnesses to the text (the Samaritan Pentateuch, the Greek Septuagint, and others) supply a plausible missing line, something to the effect of "Let us go out to the field," which most scholars take as either an authentic reading lost from the Masoretic tradition or an early, sensible attempt to patch a real gap. This project's stated method is to translate the Masoretic Text as printed at Mechon-Mamre, so this translation keeps the gap exactly as it stands there — bracketed here as "[something]" to mark the missing words rather than silently smoothing over them, the same honesty this project applied to NWT's honest but noisy "[the]" brackets back in Genesis 1:1.

The most famous rhetorical question in the book, and a direct callback. Shomer ("keeper, guard") is the same root as shamar from Genesis 2:15 — the human's job in Eden was to "work it and watch over [shamar] it." Cain's sarcastic denial that he owes his brother any shamar-obligation lands directly against that earlier vocation: the very verb that once described tending a garden is now being disowned as a duty toward a person.

An unusual plural: "bloods," not "blood." The ordinary singular dam would be expected; the text has the plural damim. A long-standing traditional reading (found in classical rabbinic commentary) takes the plural as pointing beyond Abel's own blood to every descendant he would never live to father — his blood and theirs, all silenced at once. This translation renders it simply "blood" in the singular, matching every shelf version and ordinary English idiom, but the note preserves what the Hebrew plural is doing that no natural English rendering can.

"Cursed... from the ground" echoes the man's curse in Genesis 3:17 almost word for word — but where that curse left the ground itself difficult to work, this one goes further: the ground will actively withhold its strength from Cain specifically. Na vanad, "restless wanderer" — two near-synonyms for wandering/homelessness paired for emphasis; the second word, nad, is about to become a place-name in v. 16.

Avon — punishment, or guilt? The word can mean either "iniquity/guilt" or the "punishment" that follows from it, and Cain's line is read both ways across the shelf: as despair over an unbearable sentence, or as something closer to a confession. KJV GNV ASV DRB "my punishment"; NIV "my punishment" as well; MiSTeR follows the majority reading, without pretending the ambiguity isn't there.

"Whoever finds me will kill me" — an unanswered population question. At this point in the story only Cain, his parents, and his dead brother have been named. Cain's fear of being killed by "whoever finds" him implies a wider world of people the narrative simply hasn't accounted for. This is a genuine, long-noticed gap — the text isn't concerned with narrative completeness on this point, and this translation doesn't attempt to paper over it with an invented explanation. It's one of the places the story is clearly not trying to be read as an exhaustive census.

The "mark of Cain" is never described. The Hebrew just says God "placed a sign/mark" (ot, the same word used for the rainbow-sign after the flood and for other divine signs throughout the Torah) — no shape, color, or location is given, and its function is explicitly protective ("so that anyone finding him would not kill him"), not punitive or stigmatizing. Centuries of folklore and art have supplied specifics — a horn, a dark mark, various speculative readings, some historically put to ugly use — that the text simply does not contain. Worth stating plainly: every shelf version, and this one, translates only what's there, which is silence on the mark's nature.

The wordplay lands. Nod ("Nod," the place-name) is built from the same root as na vanad, "restless wanderer," in v. 12 — Cain is sentenced to wander, and he settles, pointedly, in the land called Wandering. Every shelf version keeps "Nod" as a proper name rather than translating it, following the universal convention for place-names; the pun is worth surfacing here in the note, exactly as with Eve and Cain's own names.

Two different Enochs. Cain's son here, named for the city Cain builds, is not the same Enoch who will "walk with God" and not die in the very next chapter (Genesis 5:21–24) — two unrelated men sharing one name, easy to conflate and worth flagging clearly before this project reaches the other one.

A genealogy of cultural origins. Lamech's three sons by two wives are each credited as an ancestor-founder of a way of life: Jabal, tent-dwelling pastoralism; Jubal, instrumental music (lyre and pipe); Tubal-cain, metalworking (bronze and iron). This is the Bible's first "invention" narrative — civilization's arts traced to Cain's line specifically, the line under a curse, a detail ancient and modern readers alike have found suggestive without the text spelling out a moral.

The first poem attributed to a named speaker, and the first recorded escalation of violence. Lamech's boast to his wives is marked by Hebrew parallelism (paired, rhythmically balanced lines) — recognizable as verse rather than prose, the way English poetry is marked by meter or rhyme. Structurally it deliberately quotes the "sevenfold" vengeance God set on Cain's behalf (v. 15) and multiplies it eleven-fold: Cain is protected sevenfold from unprovoked violence; Lamech boasts he will avenge a mere wound seventy-sevenfold. In five generations, protective restraint has curdled into a boast of disproportionate revenge.

Seth / "appointed." Shet ("Seth") plays on shat, "he has appointed, set, placed" — the built-in etymology pattern one more time, closing out the run that started with Cain and Eve.

The chapter's quiet turn at the very end. After a chapter that opens with the first murder and closes with a boast of sevenfold-multiplied revenge, the final line pivots without comment: "then people began to call on the name of the LORD" — the first mention of anything like formal worship or public invocation of the divine name. MiSTeR and the whole shelf agree on the plain sense; the placement, immediately after Lamech's violence, is the kind of juxtaposition Hebrew narrative favors and rarely explains.