Jamieson, Fausset & Brown

nail . . . sure place--Large nails or pegs stood in ancient houses on which were suspended the ornaments of the family. The sense is: all that is valuable to the nation shall rest securely on him. In Ezr 9:8 "nail" is used of the large spike driven into the ground to fasten the cords of the tent to. throne--resting-place to his family, as applied to Eliakim; but "throne," in the strict sense, as applied to Messiah, the antitype (Luk 1:32-33).