Halakhah su Deuteronomio 33:14

From the roots of the commandment, [there is a need to] preface that it is known to all wise-hearted men that the sphere of the sun and the sphere of the moon act with their power - that is given over to them from the Master of all the powers in this lowly world - great effects upon the bodies of people and and upon all types of other animals. [And] even upon everything that grows in the earth, from the great cedars to the thin grasses - and more generally upon all that is from the four elements, which are below them and under their governance. And so is it written in the Order of VeZot HaBerakha (Deuteronomy 33:14), "With the bounteous produce of the sun, and the bounteous crop of the moons." And it is famous among the masses - young and old - that the power of the moon is noticeable in everything that is done on earth; as is known to those that cut whitish trees, as they do not cut them when the moon is new until five or more days, and those that ply the waters also do not cast off until after five days of a new moon, and so [too,] all people are careful not to draw blood close to its renewal. And several other activities, - big and small - require guarding not to do them when the moon is renewing; to the point that they say that flax found in soaking or in the kettle to cook during the renewal of the moon becomes defective and will not be effective for anything afterwards. And the principal of these things is revealed and known to all, and discussing them at length would be childish. And so since the renewal of the moon brings novelty to the activity of man - and it is all according to the word of the Omnipresent, blessed be He, and according to His decree - it is fitting for us also to bring novelty, and sacrifice an additional sacrifice over the other days to His name, may He be blessed; to arouse our souls and to fix in our hearts that all novelties that exist in the world are from Him, blessed be He, and all of the power of the spheres are only found with God alone. And with this pure and true thought, our souls will rise, and the blessing of God, may He be blessed, will rest upon our heads.