'Head' in the Bible

Let your head be uncovered and your hair cut off in sorrow for the children of your delight: let the hair be pulled from your head like an eagle's; for they have been taken away from you as prisoners.

The opener of the way will go up before them: forcing their way out they will go on to the doorway and out through it: their king will go on before them, and the Lord at their head.

With what am I to come before the Lord and go with bent head before the high God? am I to come before him with burned offerings, with young oxen a year old?