12 and I gave the writing of the purchase unto Baruch the son of Nerijah, the son of Maaseiah, in the sight of Hanameel mine uncle's [son], and in the presence of the witnesses that had subscribed the writing of purchase, before all the Jews that were sitting in the court of the guard.

Matthew Henry's Commentary on Jeremiah 32:12

Commentary on Jeremiah 32:1-15

(Read Jeremiah 32:1-15)

Jeremiah, being in prison for his prophecy, purchased a piece of ground. This was to signify, that though Jerusalem was besieged, and the whole country likely to be laid waste, yet the time would come, when houses, and fields, and vineyards, should be again possessed. It concerns ministers to make it appear that they believe what they preach to others. And it is good to manage even our worldly affairs in faith; to do common business with reference to the providence and promise of God.