Musar su Esodo 8:6

למען תדע כי אין כה' אלוקינו. למען תדע כי אני השם בקרב הארץ. בעבור תדע כי אין כמוני בכל הארץ. The three times Teyda that we have quoted from this portion spell out the Existence of G–d, His active role in running the universe and His Power.

Let us get back to our main subject. When G–d made Moses His messenger, He revealed to him that there are several layers of holiness in the Celestial Spheres, one above the other, and that He in His capacity as the Ineffable Name effects changes in nature and re-arranges the whole planetary system if need be. He revealed to Moses the extent to which He exercises supervision over all that transpires in our world. He acquainted Moses with all aspects of His power which extends over all other so-called powers. All of this is included in the verses quoted at the very outset of our פרשה, namely: למען תדע כי אני י-ה-ו-ה בקרב הארץ, בעבור תדע כי אין כמוני בכל הארץ. The Torah warned us that we must know all these things, that it is not sufficient to relate to them only as tradition. This is underscored in Deut. 4,39: וידעת היום והשבות אל לבבך כי י-ה-ו-ה הוא האלוקים בשמים ממעל ועל הארץ מתחת אין עוד, "You must know this day and record it in your heart that the Lord your G–d is the only true G–d in the Heavens above and on the Earth below, there is none other." The expression והשבות אל לבבך is an allusion to repentance. Having firm knowledge of the power demonstrated by G–d on behalf of Israel establishes a close link between the individual Jew and his G–d, and acts as a powerful inducement to do תשובה. Moses is on record in Psalm 91,14, that when G–d sent him as a messenger to deliver the Israelites this was a sign of His fondness of him. The reason cited for G–d being fond of Moses is כי ידע שמי, "Because he knew My name." The sinner does the reverse; he distances himself from G–d. We are told in Isaiah 59,2: כי עונותיכם הבדילו ביני וביניכם, "For your iniquities have created a barrier between Me and you." If one had put distance between oneself and G–d and wants to re-approach Him one needs do repentance. Repentance is the act of returning and re-establishing one's bond with G–d. This return has to originate in the heart, and that is why the Torah in Deut. 4,39 used the expression: והשבות אל לבבך.