the fasting day. a fast day. Being in the ninth month (Jeremiah 36:9), it was not that prescribed in the Law, which was in the seventh month (Leviticus 16:29; Leviticus 23:27).
Related Commentaries of Jeremiah 36:6
Jeremiah 36:6
6 Therefore go thou, and read in the roll, which thou hast written from my mouth, the words of the LORD in the ears of the people in the LORD'S house upon the fasting day: and also thou shalt read them in the ears of all Judah that come out of their cities.