You shall make a window (tzohar) for the ark (teivah). (Genesis 6:16). “Tzohar” has the meaning of “light,” and “teivah” means “word.” When a Jew wants to speak, he must first see that his thought illuminates his words, for though is comprised of the letters “chashav mah.”²¹,” can be rearranged as chashav mah – “He thought about what” (מחשבה – חשב מה). Toldos Yitzchok, Noach

footnotes: ²¹ The letters of the word “thought” – “machshava