Both Uses

incarnate
in
A Separate Peace
(Edited)

He's enjoying this, I thought bitterly, he's imagining himself Justice incarnate, balancing the scales.
p. 168.7

incarnate = embodied
He's forgotten that Justice incarnate is not only balancing the scales but also blindfolded.
p. 168.8 *

incarnate = embodied in material form

editor's notes: Justice incarnate is more often referred to as Lady Justice. It refers to the personification of justice in the form of a statue of a woman. She typically holds scales to weigh evidence and is blindfolded to indicate that she is blind to wealth, power, or status while determining what is right.

Definitions:

(1) (incarnate)
embody (made real in a material sense) -- especially in the form of a human body, but sometimes figuratively
(2) (meaning too rare to warrant focus)