Matthew Poole and continuators on 2 Samuel 3:29

29 Let it rest on the head of Joab, and on all his fathers house , and let there not fail from the house of Joab one that hath an issue , or that is a leper, or that leaneth on a staff , or that falleth on the sword, or that lacketh bread.

i. e. This Blood, the guilt and punishment of it.

But Children were not to suffer for their Parents sin, Deut. 24. 16. And therefore either this was onely a Prediction; or, if it were an Imprecation, David may seem to have transgressed his bounds, and mingled his Passion with his Zeal, that so he might express his utter detestation of this horrid Murder, and how far he was from having any hand in it.

Which was not onely a troublesome and shameful Diseases, but also infectious, both to him that had it, and to all that touched him: so that, whilst it was upon a man, he was cut off in a great part from converse either with God or men.

Through craziness, or feebleness, or lameness, whereby he he is rendred unfit for action and publick service.

Marginal references: Heb. be cut off.