I will set my face — I will be an enemy to him, and execute vengeance upon him immediately; because such persons probably would do this in private, so that the magistrate could not know nor punish it. Write that man undone, for ever undone, against whom God sets his face.
Related Commentaries of Leviticus 17:10
Leviticus 17:10
10 And whatsoever man there be of the house of Israel, or of the strangers that sojourn among you, that eateth any manner of blood; I will even set my face against that soul that eateth blood, and will cut him off from among his people.