And they called the people... — The Moabitish women invited the Israelites to their sacrificial feasts, which were celebrated in honour of Baal-peor, who was worshipped in the city of Beth-peor (Deuteronomy 3:29). He is supposed to be identical with Chemosh, the Moabitish god of war.
Related Commentaries of Numbers 25:2
Numbers 25:2
2 And they called the people unto the sacrifices of their gods: and the people did eat, and bowed down to their gods.