Thus it follows that the fulness and perfection of the judgment consists simply in representing the interests of the entire human being. Now, since the entire man consists of the union of the two natures, he must therefore appear in both, as it is right that he should be judged in his entirety; nor, of course, did he pass through life except in his entire state. As therefore he lived, so also must he be judged, because he has to be judged concerning the way in which he lived. For life is the cause of judgment, and it must undergo investigation in as many natures as it possessed when it discharged its vital functions.
Tertullian
On the Resurrection of the Flesh
Chapter XIV