The head; the chief of all people in power, or at least in dignity and privileges; so that even they that are not under thine authority shall reverence thy greatness and excellency. So it was in David's and Solomon's time, and so it should have been much oftener and much more, if they had performed the conditions here required. For the phrase, see Isaiah 9:14,15 Isaiah 19:15.
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: