The fifth month would be August in our calendar.

Nineteenth year of King Nebuchadrezzar would be 587 B.C., if calculated from 605, when he actually came to power.

Citing all these years and months can be confusing. One possible way to help readers is to say “In the nineteenth year that Nebuchadnezzar was king of Babylon [or, After Nebuchadnezzar was king of Babylon eighteen years], on the tenth day of the fifth month of that year.”

Nebuzaradan the captain of the bodyguard: See 39.9.

Quoted with permission from Newman, Barclay M. and Stine, Philip C. A Handbook on Jeremiah. (UBS Helps for Translators). New York: UBS, 2003. For this and other handbooks for translators see here .