Thus speaketh the LORD God of Israel, saying, Write for thee all the words that I have spoken to thee in a (a) book.
(a) Because they would be assured and their posterity confirmed in the hope of this deliverance promised.
Related Commentaries of Jeremiah 30:2
Jeremiah 30:2
2 Thus speaketh the LORD God of Israel, saying, Write thee all the words that I have spoken unto thee in a book.