Nehemiah 13:23–30

²³In those days also saw I the Jews that had married women of Ashdod, of Ammon, and of Moab: ²⁴and their children spake half in the speech of Ashdod, and could not speak in the Jews’ language, but according to the language of each people. ²⁵And I contended with them, and cursed them, and smote certain of them, and plucked off their hair, and made them swear by God, saying, Ye shall not give your daughters unto their sons, nor take their daughters for your sons, or for yourselves. ²⁶Did not Solomon king of Israel sin by these things? yet among many nations was there no king like him, and he was beloved of his God, and God made him king over all Israel: nevertheless even him did foreign women cause to sin. ²⁷Shall we then hearken unto you to do all this great evil, to trespass against our God in marrying foreign women?

²⁸And one of the sons of Joiada, the son of Eliashib the high priest, was son-in-law to Sanballat the Horonite: therefore I chased him from me. ²⁹Remember them, O my God, because they have defiled the priesthood, and the covenant of the priesthood, and of the Levites.

³⁰Thus cleansed I them from all foreigners, and appointed charges for the priests and for the Levites, every one in his work;