'Head' in the Bible

Then shall the children of Judah and the children of Israel be gathered together, and appoint themselves one head, and they shall come up out of the land: for great shall be the day of Jezreel.

Foreigners have consumed his strength, and he hasn't noticed. Furthermore, his head is sprinkled with gray hair, but he doesn't realize it.

For they sow the wind, and they will reap the whirlwind. He has no standing grain. The stalk will yield no head. If it does yield, strangers will swallow it up.

The days of punishment, the days of reward are come; Israel will be put to shame; the prophet is foolish, the man who has the spirit is off his head, because of your great sin.