اَلتَّثْنِيَة 7:3

وَلَا تُصَاهِرْهُمْ. بِنْتَكَ لَا تُعْطِ لِٱبْنِهِ، وَبِنْتَهُ لَا تَأْخُذْ لِٱبْنِكَ.

Neither shalt thou make marriages with them; thy daughter thou shalt not give unto his son, nor his daughter shalt thou take unto thy son.