Musar su Isaia 55:6

This is the general rule: there is no hour in the life of man that if he does complete repentance, it will not be accepted and his prayer answered. The Creator is not like the created who can abandon forever or bear a grudge forever, as it is said (Isaiah 57:16), “For I will not contend forever, neither will I be always wroth.” And as it is said (Jeremiah 3:12), “For I am merciful, saith the Lord, I will not bear a grudge for ever.” And on this theme, it is said (Isaiah 55:6), “Seek ye the Lord while He may be found,” meaning at those times when He can be found or in other words, as long as a man lives.

If the wise one should search out all the good things of this world, he will discern that every favor which has been apportioned to him will not accompany him at his death. Neither will his glory follow him. But he will leave everything and go barren and empty, except for one good thing which has been apportioned to him, and that is the service of God— this alone will go before him, as it is said (Isaiah 58:8), “And thy righteousness shall go before thee.” Therefore, King David, of blessed memory, said (1 Chronicles 28:9), “If thou seek Him, He will be found of thee.” And as it is said (Hosea 10:12), “For it is time to seek the Lord.” As the prophet, of blessed memory, said (Isaiah 55:6), “Seek ye the Lord⁵⁸See Pesikta de Rav Kahana edited by B. Mandelbaum (New York: Jewish Theological Seminary, 1962) Vol. 2, p. 471. while He may be found, call ye upon Him while He is near.”

Therefore, it is proper that everyone who reveres God should lessen his usual occupations and let his thoughts be calm, and let him fix hours, during the day and a night, when he can sit alone in his rooms and examine his ways and search them out, and arise even before the watches of the morning to occupy himself with the paths of repentance. And let him not do as in most cases where people fast, or rise early to pray, but they do not actually wage war against the sins in order to remove from themselves every ugly thing. For if a man prays and fasts, and confesses, and still clings to his former ways — this is not the path of repentance. But a man should arouse himself to do complete repentance during the Ten Days of Repentance, for this is a time when God accepts his plea and his prayer is heard, as it is said, "In an acceptable time have I answered thee, and in a day of salvation have I helped thee" (Is. 49:8). And our Sages, of blessed memory, said, "Seek the Lord while He may be found" (Is. 55:6) — these are the ten days that are between Rosh Hashana and Yom Kippur (Rosh Hashana 18a). And they also said that the Day of Atonement, together with repentance, atones. Therefore Scripture has warned us that we should repent and make ourselves pure before God, Blessed be He, in our ways of repentance. As it is said, "From all your sins shall ye be clean before the Lord" (Lev. 16:30). And then he will atone for us with this day, to purify us (Yoma 85b).