1 Samuel 20:30

Thou son of the perverse rebellious woman "To any Oriental, nothing is so grievously insulting as a reproach cast upon his mother.… The mother herself is not held to be affronted in such cases, but the son who hears such words applied to her is insulted, and meant to be insulted, beyond expiation." Kitto, Bible Illustr. The words might also be rendered, "thou son of perverse rebellion," i.e. according to a common Heb. idiom (cp. 1 Samuel 1:16), "thou perverse rebel."

that thou hast chosen The Sept. reads, "that thou consortest with."

to thine own confusion, &c. Thy unfilial conduct disgraces both thyself and the mother who bare thee.