12 She answered him, “No, my brother, do not force me! For no such thing ought to be done in Israel. Don’t you do this folly. 13 I, where would I carry my shame? And as for you, you will be as one of the fools in Israel. Now therefore, please speak to the king; for he will not withhold me from you.” 14 However he would not listen to her voice; but being stronger than she, he forced her, and lay with her. 15 Then Amnon hated her with exceeding great hatred; for the hatred with which he hated her was greater than the love with which he had loved her. Amnon said to her, “Arise, be gone!” 16 She said to him, “Not so, because this great wrong in sending me away is worse than the other that you did to me!”
But he would not listen to her. 17 Then he called his servant who ministered to him, and said, “Put now this woman out from me, and bolt the door after her.” 18 She had a garment of various colors on her; for with such robes were the king’s daughters who were virgins dressed. Then his servant brought her out, and bolted the door after her. 19 Tamar put ashes on her head, and tore her garment of various colors that was on her; and she laid her hand on her head, and went her way, crying aloud as she went.
20 Absalom her brother said to her, “Has Amnon your brother been with you? But now hold your peace, my sister. He is your brother. Don’t take this thing to heart.”
So Tamar remained desolate in her brother Absalom’s house.
21 But when king David heard of all these things, he was very angry. 22 Absalom spoke to Amnon neither good nor bad; for Absalom hated Amnon, because he had forced his sister Tamar.
Matthew Henry's Commentary on 2 Samuel 13:12-22
Commentary on 2 Samuel 13:1-20
(Read 2 Samuel 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.
Commentary on 2 Samuel 13:21-29
(Read 2 Samuel 13:21-29)
Observe the aggravations of Absalom's sin: he would have Ammon slain, when least fit to go out of the world. He engaged his servants in the guilt. Those servants are ill-taught who obey wicked masters, against God's commands. Indulged children always prove crosses to godly parents, whose foolish love leads them to neglect their duty to God.