Ezra 9:10-12

10Our God, we can say nothing good about ourselves. We have turned away from your commands.

11Your servants the prophets told us your laws. You said, “You will go and live in a land that is unclean. The people who live there have done wicked things. The whole land has been made unclean by all the evil things that they have done.

12So you must not let your daughters marry their sons. And do not let your sons marry their daughters. Do not ever help them to live in peace and become strong. If you make yourselves separate from them, you will be strong yourselves. The land will give you good food to eat. After you die, the land will belong to your children, and to your descendants for ever.”