Nehemiah 13:22-24

King James Version

²² And I commanded the Levites that they should cleanse themselves, and that they should come and keep the gates, to sanctify the sabbath day. Remember me, O my God, concerning this also, and spare me according to the greatness of thy mercy.

²³ In those days also saw I Jews that had married wives of Ashdod, of Ammon, and of Moab:

²⁴ And 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.