Ezra 9:10-12

10And now, our God, what can we say after this? For we have forsaken the commandments 11that You gave through Your servants the prophets, saying: ‘The land that you are entering to possess is a land polluted by the impurity of its peoples and the abominations with which they have filled it from end to end. 12Now, therefore, do not give your daughters in marriage to their sons or take their daughters for your sons. Never seek their peace or prosperity, so that you may be strong and may eat the good things of the land, leaving it as an inheritance to your sons forever.’