1The man knew Eve his wife. She conceived, and gave birth to Cain, and said, “I have gotten a man with Yahweh’s help.” 2Again she gave birth, to Cain’s brother Abel. Abel was a keeper of sheep, but Cain was a tiller of the ground. 3As time passed, Cain brought an offering to Yahweh from the fruit of the ground. 4Abel also brought some of the firstborn of his flock and of its fat. Yahweh respected Abel and his offering, 5but he didn’t respect Cain and his offering. Cain was very angry, and the expression on his face fell. 6Yahweh said to Cain, “Why are you angry? Why has the expression of your face fallen? 7If you do well, won’t it be lifted up? If you don’t do well, sin crouches at the door. Its desire is for you, but you are to rule over it.” 8Cain said to Abel, his brother, “Let’s go into the field.” While they were in the field, Cain rose up against Abel, his brother, and killed him.
9Yahweh said to Cain, “Where is Abel, your brother?”
He said, “I don’t know. Am I my brother’s keeper?”
10Yahweh said, “What have you done? The voice of your brother’s blood cries to me from the ground. 11Now you are cursed because of the ground, which has opened its mouth to receive your brother’s blood from your hand. 12From now on, when you till the ground, it won’t yield its strength to you. You will be a fugitive and a wanderer in the earth.”
13Cain said to Yahweh, “My punishment is greater than I can bear. 14Behold, you have driven me out today from the surface of the ground. I will be hidden from your face, and I will be a fugitive and a wanderer in the earth. Whoever finds me will kill me.”
15Yahweh said to him, “Therefore whoever slays Cain, vengeance will be taken on him sevenfold.” Yahweh appointed a sign for Cain, so that anyone finding him would not strike him.
16Cain left Yahweh’s presence, and lived in the land of Nod, east of Eden. 17Cain knew his wife. She conceived, and gave birth to Enoch. He built a city, and named the city after the name of his son, Enoch. 18Irad was born to Enoch. Irad became the father of Mehujael. Mehujael became the father of Methushael. Methushael became the father of Lamech. 19Lamech took two wives: the name of the first one was Adah, and the name of the second one was Zillah. 20Adah gave birth to Jabal, who was the father of those who dwell in tents and have livestock. 21His brother’s name was Jubal, who was the father of all who handle the harp and pipe. 22Zillah also gave birth to Tubal Cain, the forger of every cutting instrument of bronze and iron. Tubal Cain’s sister was Naamah. 23Lamech said to his wives,
“Adah and Zillah, hear my voice.
You wives of Lamech, listen to my speech,
for I have slain a man for wounding me,
a young man for bruising me.
24If Cain will be avenged seven times,
truly Lamech seventy-seven times.”
25Adam knew his wife again. She gave birth to a son, and named him Seth, saying, “for God has given me another child instead of Abel, for Cain killed him.” 26A son was also born to Seth, and he named him Enosh. At that time men began to call on Yahweh’s name.
The Inclusio in Genesis 1:26-28
Genesis 1:26-28 seeks to emphasize three aspects of the creation of humanity. The first portion of this text in Hebrew becomes plain. The emphasis is that male and female, as man, is the creation of God, the word "man" being used generically. Next, the focus is that male and female is in the image of God. Last, the collective "man" is male and female by God's design.
1:27 So God created man: The third time the verb for create is used in ch. 1 (see vv. 1, 21); it is used three times here. The language of 26 and 28 is elevated prose; this verse is pure poetry. The 12 words of the original Hebrew are arranged in three lines that have their own poetic repetition and cadence. The term for man is likely associated with the term for the red earth. Here the word is generic, including male and female. These words are sexual. Some have thought that the “discovery” of human sexuality was the forbidden fruit of Ch. 3. However, these words indicate that human sexuality was a part of the original creation (5:2). Although the misuse of human sexuality is soundly condemned in Scripture (Lev 18), its proper use is celebrated (Song 2:24, 25). Verses 26–28 include the woman no less than the man in the story of creation.
Adam is the name given to the first man in the creation narratives of Genesis. He was the husband of Eve and the father of Cain, Abel, and Seth. The Hebrew noun ’adham means “man” or “mankind” and is usually translated as “the man” in the early chapters of Genesis. These relate the creation of man; his naming of the various animals; the creation of his companion, the woman or Eve, and their expulsion from the paradisal Garden of Eden after disobediently eating the fruit of the tree of knowledge of good and evil, at the urging of the serpent. Expelled from Eden and reduced to a life of agricultural labor, Adam became the father of the ill-fated Cain and Abel, and later of Seth. (See Gen 1:26-30; 2:7, 8, 15-25; 3:6-4:1, 25; 5:1-5; 1 Chr 1:1; Luke 3:38; Rom 5:14; 1 Cor 15:45-49; 1 Tim 2:13,14; and Jude 14).
Biographies of Bible Characters, People and characters in the Bible, https://www.encinardemamre.com/en/Biographies/A.html
The Inclusio Found in Genesis 1:27—God's Creative Work
Genesis 1:26-28 has three foci: the proposal by God in verse 26 of what He would do; the blessing by God in verse 28 after the creative work is done; the major emphasis of God's creative work in verse 27 that God created man in His own image as male and female.