'Messengers' in the Bible

Letters were sent by couriers to all the king’s provinces to destroy, to kill and to annihilate all the Jews, both young and old, women and children, in one day, the thirteenth [day] of the twelfth month, which is the month of Adar (March 7, 473 b.c.), and to seize their belongings as plunder.

The messengers scurried forth with the king's order. The edict was issued in Susa the citadel. While the king and Haman sat down to drink, the city of Susa was in an uproar!

He wrote [a decree] in the name of King Ahasuerus, and sealed it with the king’s ring, and sent letters by couriers on horseback, riding on the royal [mail] relay horses, the offspring of the racing mares.