The greatest insult and most stinging reproach that can be cast upon an Oriental is to reproach his parents or ancestors (see Job 30:8). Saul means to intimate that Jonathan was stubborn from his mother’s womb.
Related Commentaries of 1 Samuel 20:30
1 Samuel 20:30
30 Then Saul's anger was kindled against Jonathan, and he said unto him, Thou son of the perverse rebellious woman, do not I know that thou hast chosen the son of Jesse to thine own confusion, and unto the confusion of thy mother's nakedness?