'Generation' in the Bible

Then Joseph died, and all his brothers and all that generation,

saying, “The Lord has sworn [an oath]; the Lord will have war against [the people of] Amalek from generation to generation.”

You shall not worship them nor serve them; for I, the Lord your God, am a jealous (impassioned) God [demanding what is rightfully and uniquely mine], visiting (avenging) the iniquity (sin, guilt) of the fathers on the children [that is, calling the children to account for the sins of their fathers], to the third and fourth generations of those who hate Me,

keeping mercy and lovingkindness for thousands, forgiving iniquity and transgression and sin; but He will by no means leave the guilty unpunished, visiting (avenging) the iniquity (sin, guilt) of the fathers upon the children and the grandchildren to the third and fourth generations [that is, calling the children to account for the sins of their fathers].”