# the king's scribes were called

"the king called his scribes." 

# the third month, which is the month of Sivan, on the twenty-third day of the month

"Sivan" is the name of the third month of the Hebrew calendar. The twenty-third day is near the middle of June on Western calendars.

# A decree was written

"They wrote a decree" 

# provinces

A province is a large area into which some countries are divided for the purposes of government. See how you translated this in in Esther 1:1.

# written in their own writing

"written in their own script."