It came about

See how you translated this phrase in Jeremiah 36:1.

in the fifth year and ninth month of Jehoiakim ... king of Judah

This is the ninth month of the Hebrew calendar. It is during the last part of November and the first part of December on Western calendars. "after Jehoiakim ... had been king of Judah for more than four years, during the ninth month" (See: rc://en/ta/man/translate/translate-hebrewmonths and rc://en/ta/man/translate/translate-ordinal)

See how you translated this phrase in Jeremiah 25:1.

"told everyone that they were going to fast"

It is not clear why Jeremiah is referring to himself by name here. (See: rc://en/ta/man/translate/figs-123person)

"who was a scribe"

"in the entrance of the new gate of the house of Yahweh"

He read aloud Jeremiah's words.

"where all the people could hear him." See how similar words are translated in Jeremiah 2:2.