Deuteronomy 7:3

3 neither thou shalt fellowship marriages with them; thou shalt not give thy daughter to his son, neither thou shalt take his daughter to thy son (nor shalt thou take his daughter for thy son);

Deuteronomy 7:3 Meaning and Commentary

Deuteronomy 7:3

Neither shalt thou make marriages with them
Unless they became proselytes, as Rahab, who was married by Salmon, and so those of other nations, as Ruth the Moabitess, and so any captive taken in war; otherwise it was not lawful, bad consequences have followed upon it, which it is the design of this law to prevent; that is, being snared and drawn aside into idolatry, which was the case of Solomon:

thy daughter thou shalt not give unto his son, nor his daughter shalt
thou take unto thy son;
for, according to the Targum of Jonathan, whosoever marries with them, it is as if he married with their idols: and this law, according to the Jewish writers ^F3, is binding with respect to other nations besides the seven; and whosoever marries any Heathen, of whatsoever nation, is to be beaten.

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FOOTNOTES:

F3 Maimon. Hilchot lssure Biah, c. 12. sect. 1.

Deuteronomy 7:3 In-Context

1 When thy Lord God hath led thee into the land, into which thou shalt enter to wield, and hath done away many folks before thee, (the) Hittites, and Girgashites, and Amorites, Canaanites, and Perizzites, Hivites, and Jebusites; seven folks, of much greater number than thou art, and stronger than thou;

2 and when thy Lord God hath betaken them to thee, thou shalt smite them unto death, thou shalt not make with them a bond of peace, neither thou shalt have mercy upon them, (and when the Lord thy God hath delivered them unto thee, thou shalt strike them down unto the death, thou shalt not make a covenant, or a peace treaty, with them, nor shalt thou have mercy on them,)

3 neither thou shalt fellowship marriages with them; thou shalt not give thy daughter to his son, neither thou shalt take his daughter to thy son (nor shalt thou take his daughter for thy son);

4 for she shall deceive thy son, that he follow not me, that he serve more alien gods; and then the fierce vengeance of the Lord shall be wroth, and shall do away thee soon. (for she shall deceive thy son, so that he shall not follow me, and moreover, so that he serve foreign, or other, gods; and then the Lord shall be angry, and with fierce vengeance he shall swiftly do thee away.)

5 But rather thou shalt do these things to them; destroy ye their altars, and break ye their molten images of metal, and cut ye down their woods, and burn ye their graven images. (But rather thou shalt do these things to them; destroy ye their altars, and break ye up their metal idols, and cut ye down their sacred groves, or poles, and burn ye up their carved idols.)