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, unto which ye 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: 12now therefore give not your daughters unto their sons, neither take their daughters unto your sons, nor seek their peace or their prosperity 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.