'Heads' in the Bible

Then Solomon assembled the elders of Israel, and all the heads of the tribes, the chief of the fathers of the children of Israel, unto king Solomon in Jerusalem, that they might bring up the ark of the covenant of the LORD out of the city of David, which is Zion.

And his servants said unto him, Behold now, we have heard that the kings of the house of Israel are merciful kings: let us, I pray thee, put sackcloth on our loins, and ropes upon our heads, and go out to the king of Israel: peradventure he will save thy life.

So they girded sackcloth on their loins, and put ropes on their heads, and came to the king of Israel, and said, Thy servant Benhadad saith, I pray thee, let me live. And he said, Is he yet alive? he is my brother.