Tamar's words are a verbal quotation from Genesis 34:7. The natural inference is that Tamar knew the passage in Genesis, and wished to profit by the warning that it contained. (Compare also 2 Samuel 13:13.)

Nay, my brother - There is something exceedingly tender and persuasive in this speech of Tamar; but Amnon was a mere brute, and it was all lost on him.

And she answered him, nay, my brother,.... Which carried in it a reason sufficient for her denial, that he was her brother, and she his sister, and therefore should not offer such an indignity to her:

do not force me; which was another forbidding expression, signifying she would never freely yield to his will; and to force her, to defile her against her will, to commit a rape upon her, would be very criminal indeed:

for no such thing ought to be done in Israel; among God's professing people, who were better taught and instructed; and to give into such impure practices would bring a dishonour upon them, and upon the religion they professed; she urges the honour of religion, and the reputation of Israel, and the glory of the God of Israel:

do not thou this folly: as all sin is, especially such an impure and indecent action as this.

Tamar attempted to escape by pointing to the wickedness of such a desire: "Pray, do not, my brother, do not humble me; for they do not such things in Israel: do not this folly." The words recall Genesis 34:7, where the expression "folly" (nebalah) is first used to denote a want of chastity. Such a sin was altogether out of keeping with the calling and holiness of Israel (vid., Leviticus 20:8.). "And I, whither should I carry my shame?" i.e., shame and contempt would meet me everywhere. "And thou wouldst be as one of the fools in Israel." We should both of us reap nothing but shame from it. What Tamar still further said, "Now therefore, I pray thee, speak to the king, for he will not refuse me to thee," is no doubt at variance with the law which prohibits marriage between step-brothers and sisters (Leviticus 18:9, Leviticus 18:11; Leviticus 20:17); but it by no means proves that the laws of Leviticus were not in existence at the time, nor does it even presuppose that Tamar was ignorant of any such law. She simply said this, as Clericus observes, "that she might escape from his hands by any means in her power, and to avoid inflaming him still more and driving him to sin by precluding all hope of marriage."

(Note: Josephus adopts this explanation: "This she said, as desirous to avoid her brother's violent passion at present" (Ant. viii. 8, 1).)

We cannot therefore even infer from these words of hers, that she really thought the king could grant a dispensation from the existing hindrances to their marriage.

And she answered him, Nay, my brother, do not force me; for no such thing ought to be done in Israel: do not thou this folly.

13:12 Brother - Whom nature both teaches to abhor such thoughts and obliges to defend me from such a mischief with thy utmost hazard, if another should attempt it. Force - Thou shouldst abhor it, if I were willing; but to add violence, is abominable. Israel - Among God's people who are taught better things; who also will be infinitely reproached for such a base action.

force...: Heb. humble me

no such...: Heb. it ought not so to be done

12-14. do not force me-The remonstrances and arguments of Tamar were so affecting and so strong, that had not Amnon been violently goaded on by the lustful passion of which he had become the slave, they must have prevailed with him to desist from his infamous purpose. In bidding him, however, "speak to the king, for he will not withhold me from thee," it is probable that she urged this as her last resource, saying anything she thought would please him, in order to escape for the present out of his hands.

13:1-20 From henceforward David was followed with one trouble after another. Adultery and murder were David's sins, the like sins among his children were the beginnings of his punishment: he was too indulgent to his children. Thus David might trace the sins of his children to his own misconduct, which must have made the anguish of the chastisement worse. Let no one ever expect good treatment from those who are capable of attempting their seduction; but it is better to suffer the greatest wrong than to commit the least sin.