What is the meaning of "va'Yischal"?
Radak: Pretend to be sick.
What is the meaning of "v'Savreni"?
Radak: Feed me.
What is "ha'Biryah"?
Rashi: It is the meal.
Why did Yonadav find an excuse for Tamar to go to Amnon's room?
Ralbag (3), Abarvenel (6), Metzudas Tziyon: He will have Bi'ah with her.
Malbim: (a) Through his words, David would understand that Amnon is mortally sick due to desire for her, and David will give her to him for marriage, since according to letter of the law she is permitted to him. (b) Tamar will need to obey her father and go to Amnon, and he will be able to explain his love and illness due to her, and she will want to marry him.
Why should he say "she will give to me to eat" before "she will make the food in front of me"?
Malbim: David will understand that he wants specifically Tamar to feed him due to his love for her.