1 Samuel 20:29,30

My brother, he hath commanded me to be there The eldest brother, it seems, was wont to let all the rest know that their company was expected. Thou son of the perverse, rebellious woman Or rather, according to the Hebrew, Thou son of perverse rebellion; that is, a very perverse rebel. Thou hast chosen the son of Jesse to thine own confusion Made him thy friend to thy utter undoing and disgrace. For men will conclude that thou hast no royal blood in thy veins, that thou canst so tamely give up thy crown to so contemptible a person. The confusion of thy mother's nakedness To the reproach of her having children, as if she were an adulteress, and thou and the rest base-born, and none of you worthy to inherit the kingdom: or rather, he thus asperses Jonathan's very birth, as if so degenerate a son could not be his, but must be the offspring of his mother's guilt, the issue of a criminal commerce with some other man.