Matthew Poole and continuators on Numbers 25:18

18 For they vex you with their wiles , wherewith they have beguiled you in the matter of Peor, and in the matter of Cozbi , the daughter of a prince of Midian, their sister, , which was slain in the day of the plague for Peors sake.

For under pretence of Kindred and Friendship and Leagues, yea and Marriages, which they offered to them, instead of that War which the Israelites expected from them, they sought onely an opportunity to insinuate themselves into their familiarity and execute their hellish plot of bringing that curse upon the Israelites, which they had in vain attempted to bring another way.

By drawing you both to spiritual and corporal whoredome.

In a large sense, to wit, their Countrey woman.