'Heads' in the Bible

Observing him from a distance, at first they didn't even recognize him, so they raised their voices and burst into tears. They each ripped their robes, threw ashes into the air on their heads,

You'll be protected from the accusing tongue; you need not fear destruction when it heads your way.

They're exalted momentarily, but then they are gone; they are humbled, just like all the others. They are cut down like heads of corn.