The Book of Nehemiah ends with him dealing with the issue of a lack of space between the men of Israel and foreign women.
Many of them married pagan women, which affected their home, their worship and future generations.
The people of God have a distinct language they speak. Are you fluent?
Nehemiah 13:25 So I contended with them and cursed them, struck some of them and pulled out their hair, and made them swear by God, saying, “You shall not give your daughters as wives to their sons, nor take their daughters for your sons or yourselves. 26 Did not Solomon king of Israel sin by these things?