'Grandsons' in the Bible

“Only give heed to yourself and keep your soul diligently, so that you do not forget the things which your eyes have seen and they do not depart from your heart all the days of your life; but make them known to your sons and your grandsons.

You must not worship or serve them, for I, the Lord your God, am a jealous God. I punish the sons, grandsons, and great-grandsons for the sin of the fathers who reject me,