'Runners' in the Bible

Letters were sent by the runners to all the king's provinces stating that they should destroy, kill, and annihilate all the Jews, from youth to elderly, both women and children, on a particular day, namely the thirteenth day of the twelfth month (that is, the month of Adar), and to loot and plunder their possessions.

Fast runners will find no place to hide; strong men will have no strength left; warriors will not be able to save their lives.

Archers will not hold their ground; fast runners will not save their lives, nor will those who ride horses.

Do you not know that all the runners in a stadium compete, but only one receives the prize? So run to win.