Isaiah 22:16

We may imagine the meeting between Isaiah and the vizier to have taken place at the sepulchre which the latter, after the Eastern fashion, was having prepared in his lifetime. By this act the novus homoasserted his equality with the aristocracy of Jerusalem, a piece of presumption which evidently kindles the ire of the prophet.

What hast thou(to do) here? and whom(as kindred or descendants) hast thou here? i.e. "Thou neither hast the rights of a citizen, nor canst claim to be the founder of a family." Shebna's grave was simply the monument of his own vulgar and ostentatious vanity.

that thou hast hewed … here (see below) in so conspicuous a position. That Shebna actually placed his tomb amongst those of the kings and princes of Judah is not to be assumed; but he had plainly chosen a pretentious situation.

as he that heweth Render: Hewing out his sepulchre on high! Graving in the rock an habitation for him! Ejaculations of unutterable scorn. The use of the third person suggests that there were bystanders.