Attendants on Eastern princes, trained to run before their chariots, 1 Samuel 8:11. So Elijah ran before Ahab, 1 Kings 18:46. The speed and endurance of some of these couriers is almost beyond belief, Jeremiah 42:5.

The Heavenly Footman; Or, a Description of the Man that Gets to ...
... In it we are reminded of those important directions to heavenly footmen, contained
in his most ... how many such runners will there be found at the day of judgment ...
/.../bunyan/the works of john bunyan volumes 1-3/the heavenly footman or a.htm

Footmen

Footmen or Runners