Ezra 9:12-14

12Therefore, do not give your daughters in marriage to their sons or take their daughters for your sons. Do not seek a treaty of friendship with them at any time, that you may be strong and eat the good things of the land and leave it to your children as an everlasting inheritance.’ 13“What has happened to us is a result of our evil deeds and our great guilt, and yet, our God, you have punished us less than our sins deserved and have given us a remnant like this. 14Shall we then break your commands again and intermarry with the peoples who commit such detestable practices? Would you not be angry enough with us to destroy us, leaving us no remnant or survivor?