에스겔 1:14의 Musar

Maimonides, in his ספר המדע writes as follows: "We must appreciate a fundamental truth, something basic to all knowledge. There is a SINGLE original Cause who in turn has created all other phenomena. If you ever were to think that HE does not exist, it would follow that none of the phenomena we perceive exist either. If you could imagine that all other phenomena would cease to exist, HE still would continue to exist, since all phenomena need Him for their continued existence, whereas He does not need them for His existence. His "truth" is therefore not comparable to any other kind of "truth," and this is why the prophet says: וה' אלוקים הוא לבדו אמת, "And the Lord G–d is truth" (Jeremiah 10,10). This is also what the Torah means in Deut. 4,35 ואין עוד מלבדו, "There is no one else beside Him." No truth exists independent of G–d. It is His Existence that is the supreme G–d of the universe, and He guides the universe. It is a positive commandment to acquire knowledge of and guard these facts, for the Torah says: "I am the Lord your G–d, etc." Anyone who entertains the thought that there is any other deity is a כופר בעיקר, violates a fundamental negative commandment, because the Torah says: "You must not have any other god in My Presence." Such a person denies the central pillar of the Jewish faith that everything depends upon Him. Thus far Maimonides.

The angels were praised for possessing this good trait as written: "[Bless the L-rd, His angels,] those mighty in strength, who perform His word, hearkening to the voice of His word" (Tehilim 103:20); and "the Chayot dash to and fro like the appearance of a flash of lightning" (Yechezkel 1:14). Behold, a man is a man and not an angel, hence it is impossible for him to attain the might of an angel, but he should certainly strive to do all he can to come as close to that level as possible. King David would praise (G-d) for his portion saying: "I hasten and do not delay to keep your commandments" (Tehilim 119:60).

Therefore, the sages of blessed memory exhorted us: "And you shall watch over the Matzot" - if a Mitzva comes to your hand, do not delay its performance (lit. allow it to become Chametz)' (Mechilta Shemot 12:17).

And in the Midrash (Vayikra Rabba 11:9) on the verse (Tehilim 48:15) "He shall lead us in youth" - [filled] with zeal as young maidens, as it is said: "in the midst of maidens playing the timbrels" (Tehilim 68:26) ["in youth" and "young maidens" are related words in Hebrew].