Deuteronomy 22:21

21 then shall they bring out the damsel to the doors of her father's house, and shall stone her with stones, and she shall die; because she has wrought folly among the children of Israel, to defile the house of her father by whoring: so thou shalt remove the evil one from among you.

Deuteronomy 22:21 Meaning and Commentary

Deuteronomy 22:21

Then they shall bring out the damsel to the door of her
father's house
For his greater disgrace, and as a sort of punishment for his neglect of her education, not taking care to instruct her, and bring her up in a better manner:

and the men of her city shall stone her with stones, that she die;
which was the death this sort of adulteresses were put to; others was by strangling, and the daughter of a priest was to be burnt; see ( Leviticus 20:10 ) ( 21:9 ) , which shows that this sin was committed by her after her espousals, as Jarchi and Aben Ezra note; or otherwise it would have been only simple fornication, which was not punishable with death:

because she hath wrought folly in Israel:
a sin, as all sin is folly, and especially any notorious one, as this was; and which is aggravated by its being done in Israel, among a people professing the true religion, and whom God had chosen and separated from all others to be a holy people to himself:

to play the whore in her father's house;
where she continued after her espousals, until she was taken to the house of her husband, to consummate the: marriage; and between the one and the other was this sin committed, and which is another reason for her execution at the door of her father's house:

so shalt thou put evil away from among you;
deter others from it by such an example, and remove the guilt of it from them, which otherwise would lie upon them, if punishment was not inflicted; the Targum of Jonathan interprets it of the putting away of her that did the evil.

Deuteronomy 22:21 In-Context

19 and shall fine him a hundred shekels, and shall give to the father of the damsel, because he has brought forth an evil name against a virgin of Israel; and she shall be his wife: he shall never be able to put her away.
20 But if this report be true, and the tokens of virginity be not found for the damsel;
21 then shall they bring out the damsel to the doors of her father's house, and shall stone her with stones, and she shall die; because she has wrought folly among the children of Israel, to defile the house of her father by whoring: so thou shalt remove the evil one from among you.
22 And if a man be found lying with a woman married to a man, ye shall kill them both, the man that lay with the woman, and the woman: so shalt thou remove the wicked one out of Israel.
23 And if there be a young damsel espoused to a man, and a man should have found her in the city and have lain with her;

The Brenton translation of the Septuagint is in the public domain.