This is where the quality of offering matters.

Accordingly, Cain’s offering was from the inferior portions of the crop, while Abel’s only the finest of his flock. Thus, acceptance vs. rejection as the turn of events are the end results.

V. 7 on sin. “… you can conquer it.” Contrary to misleading teaching or doctrine in the Greek book — New Testament, that sin cannot be overcome.

“Cain and Abel”
“The Descendants of Cain”

After a period of time, Cain brought an offering to Hashem of the fruit of the ground;
4:3
and as for Abel, he also brought of the firstlings of his flock and from their choicest. Hashem turned to Abel and to his oferring,
:4
but to Cain and to his offering He did not turn. This annoyed Cain exceedingly, and his countenance fell.
:5
Surely, if you improve yourself, you will be forgiven. But if you do not improve yourself, sin rests at the door. Its desire is toward you, yet you can conquer it.
:7
… Then to call in the Name of Hashem became profaned.
:26

1 Now the man knew his wife Eve, and she conceived and bore Cain, and she said, “I have acquired a man with the Lord.”
2 And she continued to bear his brother Abel, and Abel was a shepherd of flocks, and Cain was a tiller of the soil.
3 Now it came to pass at the end of days, that Cain brought of the fruit of the soil an offering to the Lord.
4 And Abel he too brought of the firstborn of his flocks and of their fattest, and the Lord turned to Abel and to his offering.
5 But to Cain and to his offering He did not turn, and it annoyed Cain exceedingly, and his countenance fell.
6 And the Lord said to Cain, “Why are you annoyed, and why has your countenance fallen?
7 Is it not so that if you improve, it will be forgiven you? If you do not improve, however, at the entrance, sin is lying, and to you is its longing, but you can rule over it.”
8 And Cain spoke to Abel his brother, and it came to pass when they were in the field, that Cain rose up against Abel his brother and slew him.
9 And the Lord said to Cain, “Where is Abel your brother?” And he said, “I do not know. Am I my brother’s keeper?”
10 And He said, “What have you done? Hark! Your brother’s blood cries out to Me from the earth.
11 And now, you are cursed even more than the ground, which opened its mouth to take your brother’s blood from your hand.
12 When you till the soil, it will not continue to give its strength to you; you shall be a wanderer and an exile in the land.”
13 And Cain said to the Lord, “Is my iniquity too great to bear?
14 Behold You have driven me today off the face of the earth, and I shall be hidden from before You, and I will be a wanderer and an exile in the land, and it will be that whoever finds me will kill me.”
15 And the Lord said to him, “Therefore, whoever kills Cain, vengeance will be wrought upon him sevenfold,” and the Lord placed a mark on Cain that no one who find him slay him.
16 And Cain went forth from before the Lord, and he dwelt in the land of the wanderers, to the east of Eden.
17 And Cain knew his wife, and she conceived and bore Enoch, and he was building a city, and he called the city after the name of his son, Enoch.
18 And Irad was born to Enoch, and Irad begot Mehujael, and Mehijael begot Methushael, and Methushael begot Lemech.
19 And Lemech took himself two wives; one was named Adah, and the other was named Zillah.
20 Now Adah bore Jabal; he was the father of those who dwell in tents and have cattle.
21 And his brother’s name was Jubal; he was the father of all who grasp a lyre and a flute.
22 And Zillah she too bore Tubal-cain, who sharpened all tools that cut copper and iron, and Tubal-cain’s sister was Na’amah.
23 Now Lemech said to his wives, “Adah and Zillah, hearken to my voice; wives of Lemech, incline your ears to my words, for I have slain a man by wounding (him) and a child by bruising (him).
24 If Cain shall be avenged sevenfold, then for Lemech it shall be seventy seven fold.”
25 And Adam knew his wife again, and she bore a son, and she named him Seth, for God has given me other seed, instead of Abel, for Cain slew him.
26 And to Seth also to him a son was born, and he named him Enosh; then it became common to call by the name of the Lord.