Cross reference
Deuteronomy 23:6
6 You shall not seek their peace nor their prosperity all your days forever.
Ezra 9:12
12 now therefore don't give your daughters to their sons, neither take their daughters to your sons, nor seek their peace or their prosperity forever; that you may be strong, and eat the good of the land, and leave it for an inheritance to your children forever.
2 Samuel 8:2
2 He struck Moab, and measured them with the line, making them to lie down on the ground; and he measured two lines to put to death, and one full line to keep alive. The Moabites became servants to David, and brought tribute.
2 Samuel 12:31
31 He brought forth the people who were therein, and put them under saws, and under harrows of iron, and under axes of iron, and made them pass through the brick kiln: and thus did he to all the cities of the children of Ammon. David and all the people returned to Jerusalem.
Nehemiah 13:23-25
23 In those days also saw I the Jews who had married women of Ashdod, of Ammon, [and] of Moab:
24 and their children spoke half in the speech of Ashdod, and could not speak in the Jews' language, but according to the language of each people.
25 I contended with them, and cursed them, and struck certain of them, and plucked off their hair, and made them swear by God, [saying], You shall not give your daughters to their sons, nor take their daughters for your sons, or for yourselves.