Therefore do not give your daughters to their sons, neither take their daughters for your sons, and never seek their peace or prosperity, that you may be strong and eat the good of the land and leave it for an inheritance to your children forever.’
And he brought out the people who were in it and set them to labor with saws and iron picks and iron axes and made them toil at the brick kilns. And thus he did to all the cities of the Ammonites. Then David and all the people returned to Jerusalem.
In those days also I saw the Jews who had married women of Ashdod, Ammon, and Moab.And half of their children spoke the language of Ashdod, and they could not speak the language of Judah, but only the language of each people.And I confronted them and cursed them and beat some of them and pulled out their hair. And I made them take an oath in the name of God, saying,“ You shall not give your daughters to their sons, or take their daughters for your sons or for yourselves.
And he defeated Moab and he measured them with a line, making them lie down on the ground. Two lines he measured to be put to death, and one full line to be spared. And the Moabites became servants to David and brought tribute.