'Crack' in the Bible

On the seventh day they were up at the crack of dawn and marched around the city as before -- only this time they marched around it seven times.

"Take the shorts that you bought and are wearing and go at once to Perath. Bury the shorts there in a crack in the rocks."

The chariot drivers will crack their whips; the chariot wheels will shake the ground; the chariot horses will gallop; the war chariots will bolt forward!