Has any man become pledged to a woman and not married her? Let him return home, or he may die in battle and another man marry her.”
Israel was at this time to be considered rather as a camp than as a kingdom, entering upon an enemy's country, and not yet settled in a country of their own; and, besides the war they were now entering upon in order to their settlement, even after their settlement they could neither protect nor enlarge their coast without hearing the alarms of war.
Commenting on Deuteronomy 20:1-9
And what man is there that hath betrothed a wife, and hath not taken her?.... Home to his house and bedded with her; has only betrothed her, but is not properly married to her, the nuptials are not completed; this the Jews understand of anyone betrothed to him, whether a virgin or a widow, or the wife of a deceased brother (yea, they say, if...
Deu 20:5-7 Moreover, the shoterim, whose duty it was, as the keepers of the genealogical tables, to appoint the men who were bound to serve, were to release such of the men who had been summoned to the war as had entered into domestic relations, which would make it a harder thing for them to be exposed to death than for any of the others...
Commenting on Deuteronomy 20:5-7