'Hoofbeats' in the Bible

Through the window she looked; Sisera's mother cried out through the lattice: 'Why is his chariot so slow to return? Why are the hoofbeats of his chariot-horses delayed?'

Fathers will hear the hoofbeats of the enemies' horses, the clatter of their chariots and the rumbling of their wheels. They will not turn back to save their children because they will be paralyzed with fear.