Charles Spurgeon Commentary Jeremiah 32:8

"So Hanamel mine uncle`s son came to me in the court of the guard according to the word of Jehovah, and said unto me, Buy my field, I pray thee, that is in Anathoth, which is in the land of Benjamin; for the right of inheritance is thine, and the redemption is thine; buy it for thyself. Then I knew that this was the word of Jehovah." — Jeremiah 32:8 (ASV)

So Hanameel mine uncle's son came to me in the court of the prison according to the word of the LORD, and said unto me, Buy my field, I pray thee, that is in Anathoth, which is in the country of Benjamin: for the right of inheritance is thine, and the redemption is thine; buy it for thyself. Then I knew that this was the word of the LORD.

Should a minister be concerned about the buying of land? Yes, if God instructs him to buy it. He is not to be entangled with the affairs of this life; but Jeremiah certainly could not be entangled with this field.