וְיִפְתָּ֣ח הַגִּלְעָדִ֗י הָיָה֙ גִּבּ֣וֹר חַ֔יִל וְה֖וּא בֶּן־אִשָּׁ֣ה זוֹנָ֑ה וַיּ֥וֹלֶד גִּלְעָ֖ד אֶת־יִפְתָּֽח׃
און יפֿתּח דער גלעדער איז געװען אַ העלדישער גיבור, און ער איז געװען דער זון פֿון אַ פֿרױ אַ זונה; און גלעד האָט געבאָרן יפֿתּחן.
Zohar
Shimei “cast dust” at David (II Sam. 16, 16), and Solomon referred to water when he prohibited him to cross the brook Kidron: dust and water were the means of testing the woman who was suspected of adultery (Num. 5, 11-31), and these two symbols were in the mind of Solomon when he thought of Shimei, who maligned his father. In his charge to Solomon concerning this Shimei, David said: “And behold thou hast with thee Shimei….which cursed me with a strong curse… and I sware to him by the Lord saying, I will not put thee to death with the sword.”