'Posterity' in the Bible

"Tell the Israelites, 'If any of you or of your posterity become ceremonially defiled by touching a dead body, or are on a journey far away, then he may observe the Passover to the Lord.

Indeed, there is hope for your posterity. Your children will return to their own territory. I, the Lord, affirm it!

Shortly after his rise to power, his kingdom will be broken up and distributed toward the four winds of the sky -- but not to his posterity or with the authority he exercised, for his kingdom will be uprooted and distributed to others besides these.