'Generation' in the Bible

Yahweh said to Noah, "Come with all of your household into the ship, for I have seen your righteousness before me in this generation.

In the fourth generation they will come here again, for the iniquity of the Amorite is not yet full."

Joseph saw Ephraim's children to the third generation. The children also of Machir, the son of Manasseh, were born on Joseph's knees.