Genesis 22:21NET Bible

Genesis 2:24

That is why a man leaves his father and mother and unites with his wife, and they become a new family.

Genesis 4:2

Then she gave birth to his brother Abel. Abel took care of the flocks, while Cain cultivated the ground.

Genesis 4:4

But Abel brought some of the firstborn of his flock--even the fattest of them. And the LORD was pleased with Abel and his offering,

Genesis 4:8

Cain said to his brother Abel, "Let's go out to the field." While they were in the field, Cain attacked his brother Abel and killed him.

Genesis 4:9

Then the LORD said to Cain, "Where is your brother Abel?" And he replied, "I don't know! Am I my brother's guardian?"