'Generation' in the Bible

Then the LORD told Noah, "Come you and all your household into the ark, because I've seen that you alone are righteous in this generation.

Your descendants will return here in the fourth generation, since the iniquity of the Amorites has not yet run its course."

I'm establishing my covenant between me and you, and with your descendants who come after you, generation after generation, as an eternal covenant, to be your God and your descendants' God after you.

God continued to speak to Abraham, "You and your descendants who are born in the future are to keep my covenant that is, you and your descendants, generation after generation.

Generation after generation, every male among you is to be circumcised on the eighth day after his birth, including the servant born in your house or the one purchased from a foreigner, who is not of your offspring.

Joseph saw the third generation of Ephraim's children, as well as the children who had been born to Manasseh's son Machir, whom he adopted as his own.