Ezra 9:10-12

10And now, O our God, what shall we say after this? for we have forsaken thy commandments, 11Which thou hast commanded by thy servants the prophets, saying, The land, where ye go to possess it, is an unclean land with the filthiness of the people of the lands, with their abominations, which have filled it from one end to another with their uncleanness.12 12Now therefore give not your daughters to their sons, neither take their daughters to your sons, nor seek their peace or their wealth for ever: that ye may be strong, and eat the good of the land, and leave it for an inheritance to your children for ever.