Matthew Henry on 2 Samuel 13:1-20
We have here a particular account of the abominable wickedness of Amnon in ravishing his sister, a subject not fit to be enlarged upon nor indeed to be mentioned without blushing, that ever any man should be so vile, especially that a son of David should be so. Amnon's character, we have reason to think, was bad in other things; if he had not forsaken God, he would never have been given up to these vile affections. Godly parents have often been afflicted with wicked children; grace does not run in the blood, but corruption does. We do not find that David's children imitated him in his devotion; but his false steps they trod in, and in those did much worse, and repented not. Parents know not…
Read the whole note in the consoleJamieson-Fausset-Brown on 2 Samuel 13:17
bolt the door after her--The street door of houses in the East is always kept barred--the bolts being of wood. In the great mansions, where a porter stands at the outside, this precaution is dispensed with; and the circumstance, therefore, of a prince giving an order so unusual shows the vehement perturbation of Ammon's mind.
Adam Clarke on 2 Samuel 13:15
Hated her exceedingly - Amnon's conduct to his sister was not only brutal but inexplicable. It would be easy to form conjectures concerning the cause, but we can arrive at no certainty.
John Gill on 2 Samuel 13:17
Then he called his servants that ministered unto him,.... His domestic servants that waited on him:
and said, put now this woman out from me; she not willing to depart at once, he ordered her to be put out immediately by force; using her and speaking of her in a very rude and scandalous manner, calling her this, leaving it to be supplied, as they would understand it, this base woman, this strumpet, &c.
and bolt the door after her; that she might not return; this was more disgraceful still.
Keil & Delitzsch on 2 Samuel 13:1-22