5 Then Jonadab said to him, Go to your bed, and let it seem that you are ill: and when your father comes to see you, say to him, Let my sister Tamar come and give me bread, and get the food ready before my eyes, so that I may see it and take it from her hand. 6 So Amnon went to bed and made himself seem ill: and when the king came to see him, Amnon said to the king, Please let my sister Tamar come and make me one or two cakes before my eyes, so that I may take food from her hand. 7 Then David sent to the house for Tamar and said, Go now to your brother Amnon's house and get a meal for him. 8 So Tamar went to her brother Amnon's house; and he was in bed. And she took paste and made cakes before his eyes, cooking them over the fire. 9 And she took the cooking-pot, and put the cakes before him, but he would not take them. And Amnon said, Let everyone go away from me. So they all went out. 10 Then Amnon said to Tamar, Take the food and come into my bedroom, so that I may take it from your hand. So Tamar took the cakes she had made and went with them into her brother Amnon's bedroom. 11 And when she took them to give them to him, he put his arms round her and said, Come to bed, my sister. 12 And answering him, she said, O my brother, do not put shame on me; it is not right for such a thing to be done in Israel: do not this evil thing. 13 What will become of me in my shame? and as for you, you will be looked down on with disgust by all Israel. Now then, go and make your request to the king, for he will not keep me from you. 14 But he would not give attention to what she said: but being stronger than she, he took her by force, and had connection with her.
Matthew Henry's Commentary on 2 Samuel 13:5-14
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.