1 Esdras 8:83-85

Revised Standard Version

⁸³ ‘The land which you are entering to take possession of it is a land polluted with the pollution of the aliens of the land, and they have filled it with their uncleanness. ⁸⁴ Therefore do not give your daughters in marriage to their sons, and do not take their daughters for your sons; ⁸⁵ and do not seek ever to have peace with them, in order that you may be strong and eat the good things of the land and leave it for an inheritance to your children for ever.’