'Eight' in the Bible

And after the birth of Seth, Adam went on living for eight hundred years, and had sons and daughters:

And he went on living after the birth of Enosh for eight hundred and seven years, and had sons and daughters:

And after the birth of Kenan, Enosh went on living for eight hundred and fifteen years, and had sons and daughters:

And after the birth of Mahalalel, Kenan went on living for eight hundred and forty years, and had sons and daughters:

And after the birth of Jared, Mahalalel went on living for eight hundred and thirty years, and had sons and daughters:

And all the years of Mahalalel's life were eight hundred and ninety-five: and he came to his end.

And Jared went on living after the birth of Enoch for eight hundred years, and had sons and daughters:

Every male among you, from one generation to another, is to undergo circumcision when he is eight days old, with every servant whose birth takes place in your house, or for whom you gave money to someone of another country, and not of your seed.

And when his son Isaac was eight days old, Abraham made him undergo circumcision, as God had said to him.

Bethuel was the father of Rebekah: these eight were the children of Milcah and Nahor, Abraham's brother.