Ezra 9
11 Ref which you have commanded by your servants the prophets, saying, The land, to which you go to possess it, is an unclean land through the uncleanness of the peoples of the lands, through their abominations, which have filled it from one end to another with their filthiness:
12 Ref now therefore don't give your daughters to their sons, neither take their daughters to your sons, nor seek their peace or their prosperity forever; that you may be strong, and eat the good of the land, and leave it for an inheritance to your children forever.