Nehemiah 13:24

and their sons spoke half in the speech of Ashdod, and according to the language of each people; for they could not speak in the Jews' language.

For then I will restore to the peoples the pure language that they may all call upon the name of the LORD to serve him with one consent.

Treasury of Scripture Knowledge

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.

For then I will restore to the peoples the pure language that they may all call upon the name of the LORD to serve him with one consent.

Neither shalt thou make marriages with them; thy daughter thou shalt not give unto his son, nor his daughter shalt thou take unto thy son.

they took their daughters to be their wives and gave their daughters to their sons and served their gods.