All they that be fat upon earth shall eat and worship. The Christian feast is not for the poor and needy only, like Jewish sacrificial feasts, but for the "fat ones" of the earth as well—the rich and prosperous.
As Hengstenberg observes, "This great spiritual feast is not unworthy of the presence even of those who live in the greatest abundance: it contains a costly viand, which all their plenty cannot give—a viand for which even the satisfied are hungry; and, on the other hand, the most needy and most miserable are not excluded".
All they that go down to the dust shall bow before him; i.e. all mortal men what-soever—all that are on their way to the tomb—shall bow before Christ, either willingly as his worshippers, or unwillingly as his conquered enemies, made to lick the dust at his feet.