months by numbers instead of by the old Hebrew names, Abib, Zif, Bul, Ethanim and the like,—a style which arises together with the use of the spring era,—does not yet occur in Deuteronomy (xvi.1), but apart from the Priestly Code, and the last redactor of the Pentateuch (Deuteronomy i. 3) is found for the first time in writers of the period of the exile. It is first found in Jeremiah, but only in those portions of his book which were not committed to writing by him, or at least have been edited by a later hand; /2/
— Footnote 2. Kuenen, Hist.-Krit. Onderzoek (1863), ii. pp. 197, 214. — Footnote
then in Ezekiel and the author of the Book of Kings, who explains the names he found in his source by giving the numbers (1Kings vi. 37, 38, viii. 2); next in Haggai and Zechariah; and lastly in Chronicles, though here already the Babylonio-Syrian names of the months, which at first were not used in Hebrew, have begun to find their way in (Nehemiah i. 1, ii. 1; Zech. i. 7). The Syrian names are always given along with the numbers in the Book of Esther, and are used to the exclusion of all others in that of Maccabees. It would be absurd to attempt to explain this demonstrable change which took place in the calendar after the exile as a mere incidental effect of the Priestly Code, hitherto in a state of suspended animation, rather than by reference to general causes arising from the circumstances of the time, under whose influence the Priestly Code itself also stood, and which then had for their result a complete change in the greater accuracy and more general applicability of the methods by which time was reckoned. A similar phenomenon presents itself in connection with the metric system. The "shekel of the sanctuary," often mentioned in the Priestly Code, and there only, cannot possibly have borne this name until the most natural objects of the old Israelite regime had begun to appear surrounded by a legendary nimbus, because themselves no longer in actual existence. Over against it we have the "king's weight" mentioned in a gloss in 2Samuel xiv. 26, the king being none other than the great king of Babylon. It is an interesting circumstance that the "shekel of the sanctuary "spoken of in the Priestly Code is still the ordinary shekel in Ezekiel; compare Exodus xxx. 13 with Ezekiel xliv. 12.
During the exile the observance of the ecclesiastical new year seems to have taken place not on the first but on the tenth of the seventh month (Leviticus xxv. 9; Ezekiel xl. 1), and there is nothing to be wondered at in this, after once it had come to be separated from the actual beginning of the year. /1/ This fact alone
— Footnote 1. The tenth of the month is to be taken in Ezekiel as strictly new year's day; for the designation R)# H#NH occurs in no other meaning than this, and moreover it is by no mere accident that the prophet has his vision of the new Jerusalem precisely at the new year. But according to Leviticus xxv. 9 it is the seventh month that is meant, on the tenth day of which the trumpets are blown at the commencement of the year of jubilee. — Footnote
would suffice to bring into a clear light the late origin of the great day of atonement in Leviticus xvi., which at a subsequent period was observed on this date; for although as a ceremonial of general purification that day occurs appropriately enough at the change of the year, the joyful sound of the new year trumpets ill befits its quiet solemnity, the YWM TRW(H in the Priestly Code being in fact fixed for the first of the seventh month. Notwithstanding its conspicuous importance, there is nothing known of the great day of atonement either in the Jehovistic and Deuteronomic portions of the Pentateuch or in the historical and prophetical books. It first begins to show itself in embryo during the exile. Ezekiel (xiv. 18-20) appoints two great expiations at the beginning of the two halves of the year; for in xiv. 20 the LXX must be accepted, which reads B#B(Y BXD#, "in the seventh month at new moon." The second of these, in autumn, is similar to that of the Priestly Code, only that it falls on the first and new year on the tenth, while in the latter, on the contrary, new year is observed on the first and the atonement on the tenth; the ritual is also much simpler. Zechariah towards the end of the sixth century looks back upon two regular fast days, in the fifth and the seventh month, as having been in observance for seventy years, that is, from the beginning of the exile (vii. 5), and to these he adds (viii. 19) two others in the fourth and in the tenth. They refer, according to the very probable explanation of C. B. Michaelis, to the historical days of calamity which preceded the exile. On the ninth day of the fourth month Jerusalem was taken (Jeremiah xxxix. 2); on the seventh of the fifth the city and the temple were burnt (2Kings xxv. 8); in the seventh month Gedaliah was murdered, and all that remained of the Jewish state annihilated (Jeremiah xli.); in the tenth the siege of the city by Nebuchadnezzar was begun (2Kings xxv. 1). Zechariah also still knows nothing of the great day of atonement in Leviticus xvi., but only mentions among others the fast of the seventh month as having subsisted for seventy years. Even in 444 B.C., the year of the publication of the Pentateuch by Ezra, the great day of atonement has not yet come into force. Ezra begins the reading of the law in the beginning of the seventh month, and afterwards the feast of tabernacles is observed on the fifteenth; of an atoning solemnity on the tenth of the month not a word is said in the circumstantial narrative, which, moreover, is one specially interested in the liturgical element, but it is made up for on the twenty-fourth (Nehemiah viii., ix.). This testimonium e silentio is enough; down to that date the great day of the Priestly Code (now introduced for the first time) had not existed. /1/ The term is
— Footnote 1. "If Leviticus xvi. belongs to the original of the Priestly Code, and the entire Pentateuch was published by Ezra in the year 444, and yet the day was not then celebrated, then it has ipso facto been conceded that it is possible that there can be laws which yet are not carried into effect." So writes Dillmann in his introduction to Leviticus xvi. (1880, p. 525); every one will grant him that the law, before it could attain public currency, must have been previously written and promulgated. — Footnote
partly fixed, following Ezekiel, by reference to the old new year's day (Leviticus xxv. 9); partly, following Zechariah, by reference to the fast of Gedaliah, which indeed was still observed later as a separate solemnity.
Even before the exile general fast days doubtless occurred, but they were specially appointed, and always arose out of extraordinary occasions, when some sin was brought home to the public conscience, or when the divine anger threatened, especially in connection with calamities affecting the produce of the soil (1Kings xxi. 9, 12; Jeremiah xiv. 12, xxxvi. 6, 9; Joel i. 14, ii. 12, 15). In the exile they began to be a regular custom (Isaiah lviii.), doubtless in the first instance in remembrance of the dies atri that had been experienced, but also in a certain measure as a surrogate, suited to the circumstances, for the joyous popular gatherings of Easter, Pentecost, and Tabernacles which were possible only in the Holy Land. /l/
— Footnote 1. After the second destruction of Jerusalem by Titus, the system of fasts received such an impulse that it was necessary to draw up a list of the days on which fasting was forbidden. — Footnote