Daniel 10:2

In those days I Daniel was mourning three full weeks . The versions are close to the Massoretic, only the Septuagint, and, following it, the Vetus, as quoted by Tertullian, omit "days," in the literal rendering of the Hebrew phrase, "weeks of days". Mourning. Zöckler and Fuller think this mourning due to the difficulties the released captives had in carrying out their desire of rebuilding the temple. It may have been that he was grieved that so few of the people were willing to avail themselves of the privilege. We are here assuming that the chronology of this passage reckons from the overthrow of Nabunahid, that is, from Cyrus's accession to the throne of Babylon; but, as we have seen, this "third year" may be reckoned from his assumption of the title King of Persia, San Parsua , in which case it may be the same year with that vision narrated in the previous chapter. Three full weeks ; literally, three weeks of days —to mark off the duration of Daniel's fast from the weeks of years referred to in the ninth chapter. Keil objects to this interpretation, but assigns no reason. At the same time, it is to be observed that "year of days" means a full year, but a week is such a short period that the necessity of saying that it was complete by defining it a "week of days" is not so obvious, and is unexampled.