Nehemiah 13:23-29

23In those days I also saw Jews who had married women from Ashdod, Ammon, and Moab.

24As for their children, half spoke in the language of Ashdod, and none of them knew how to speak [Hebrew] the language of Judah, but only the language of his own people.

25So I contended with them and cursed them and struck some of them and pulled out their hair, and made them swear by God, saying, “You shall not give your daughters [in marriage] to their sons, nor take [any of] their daughters for your sons or for yourselves.

26Did not Solomon king of Israel sin [greatly against God] regarding these things? Yet among the many nations there was no king like him. He was loved by his God, and God made him king over all Israel; nevertheless the foreign women caused even him to sin [by turning to other gods and so, judged by God, he lost his kingdom].

27Do we then hear about you that you have done all this great evil, acting unfaithfully against our God by marrying foreign (pagan) women?”

28One of the sons of Joiada, the son of Eliashib the high priest, was a son-in-law of Sanballat the Horonite, so I chased him away from me.

29O my God, remember them, because they have defiled the priesthood and the covenant of the priesthood and the Levites.