Shmuel Bais 13:12

12 And she answered him, No, achi, do not violate me; for no such thing ought to be done in Yisroel; do not thou this nevalah (foul deed, shameful thing).

Shmuel Bais 13:12 Meaning and Commentary

2 Samuel 13:12

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.

Shmuel Bais 13:12 In-Context

10 And Amnon said unto Tamar, Bring the briyah into the cheder ([bed] room), that I may eat from thine yad. And Tamar took the [heart-shaped] cakes which she had prepared, and brought them into the bedroom to Amnon her brother.

11 And when she had brought them unto him to eat, he took hold of her, and said unto her, Come lie with me, my achot.

12 And she answered him, No, achi, do not violate me; for no such thing ought to be done in Yisroel; do not thou this nevalah (foul deed, shameful thing).

13 And I, to where shall I cause my cherpah (shame, disgrace) to go? And as for thee, thou shalt be as one of the nevalim (wicked fools) in Yisroel. Now therefore, speak unto HaMelech; for he will not withhold me from thee.

14 Howbeit he would not pay heed unto her voice; but, being stronger than she, violated her and raped her, and lay with her.