'Generations' in the Bible

These are the generations of the heavens and of the earth when they were created, in the day that the LORD God made the earth and the heavens,

This is the book of the generations of Adam. In the day that God created man, in the likeness of God made he him;

These are the generations of Noah: Noah was a just man and perfect in his generations, and Noah walked with God.

And God said, This is the token of the covenant which I make between me and you and every living creature that is with you, for perpetual generations:

Now these are the generations of the sons of Noah, Shem, Ham, and Japheth: and unto them were sons born after the flood.

These are the families of the sons of Noah, after their generations, in their nations: and by these were the nations divided in the earth after the flood.

These are the generations of Shem: Shem was an hundred years old, and begat Arphaxad two years after the flood:

Now these are the generations of Terah: Terah begat Abram, Nahor, and Haran; and Haran begat Lot.

And I will establish my covenant between me and thee and thy seed after thee in their generations for an everlasting covenant, to be a God unto thee, and to thy seed after thee.

And God said unto Abraham, Thou shalt keep my covenant therefore, thou, and thy seed after thee in their generations.

And he that is eight days old shall be circumcised among you, every man child in your generations, he that is born in the house, or bought with money of any stranger, which is not of thy seed.

Now these are the generations of Ishmael, Abraham's son, whom Hagar the Egyptian, Sarah's handmaid, bare unto Abraham:

And these are the names of the sons of Ishmael, by their names, according to their generations: the firstborn of Ishmael, Nebajoth; and Kedar, and Adbeel, and Mibsam,

And these are the generations of Isaac, Abraham's son: Abraham begat Isaac:

Now these are the generations of Esau, who is Edom.

And these are the generations of Esau the father of the Edomites in mount Seir:

These are the generations of Jacob. Joseph, being seventeen years old, was feeding the flock with his brethren; and the lad was with the sons of Bilhah, and with the sons of Zilpah, his father's wives: and Joseph brought unto his father their evil report.