The head The chief of all people in power, or at least in dignity and privileges; so that even they that are not under thy authority shall reverence thy greatness and excellence. So it was in David's and Solomon's time, and so it should have been oftener and much more, if they had performed the conditions.
Related Commentaries of Deuteronomy 28:13
Deuteronomy 28:13
13 And the LORD shall make thee the head, and not the tail; and thou shalt be above only, and thou shalt not be beneath; if that thou hearken unto the commandments of the LORD thy God, which I command thee this day, to observe and to do them: