“Two nations
My soul detests.
The third
Is not even a nation.
They are
Those who live on Mount Seir,
The Philistines,
And the foolish people
That live in Shechem.”
Sirach uses the numerical concept of Proverbs. He detests 2 countries. They appear to be the Edomites of Mount Seir and the Philistines or pagan Hellenists. The third group are the foolish Samaritans who live in Shechem.