The Right of Redeeming Zion

Jeremiah is sitting in prison with Babylon sieging the city. His cousin shows up and says, can you buy this? And Jeremiah says, OK, I know this is the word of the Lord. It's an interesting thing because interestingly enough, Anathoth is not that far from Jerusalem. But the principle here of Jeremiah redeeming it, right? And the right of redemption is Zion.