The decree of Artaxerxes was most comprehensive (Ezra 7), authorizing the full restoration of the civil and religious administration of Jerusalem and Judea. And Inspiration specifically sums up all the decrees as completed only in that of Artaxerxes, which thus constituted "the commandment:"
"They builded, and finished it, according to the commandment of the God of Israel, and according to the commandment of Cyrus, and Darius, and Artaxerxes king of Persia." Ezra 6:14.
REBUILDING JERUSALEM
"They builded, and finished it, according to the commandment of the God of Israel, and according to the commandment of Cyrus, and Darius, and Artaxerxes king of Persia." Ezra 6:14.
According to this scripture, the full "going forth of the commandment to restore and to build," dates from this decree of Artaxerxes. And this decree went forth "in the seventh year of Artaxerxes the king." Ezra 7:7.
What year was this seventh year of Artaxerxes—a date so important to fix to a certainty?
The great chronological standard for the kings of the ancient empires is the canon, or historical rule, of Ptolemy. Ptolemy was a Greek historian, geographer, and astronomer, who lived in the temple of Serapis, near Alexandria, Egypt. From ancient records he prepared a chronological table of the kings of Babylon, Persia, Greece, and Rome (carrying the Roman list to his own time, which was the second century after Christ). Along with his list of kings and the years of their succession, Ptolemy compiled a record of ancient observations of eclipses. In such and such a year of a king, for instance, on a given day of the month, an eclipse of the sun or moon would be recorded. Astronomers have worked out these observations, and verified them. The learned Dr. William Hales said:
"To the authenticity of these copies of Ptolemy's canon, the strongest testimony is given by their exact agreement throughout, with above twenty dates and computations of eclipses in Ptolemy's Almagest."—"Chronology," Vol. I, p. 166.
Thus, says James B. Lindsay, an English chronologist, "a foundation is laid for chronology sure as the stars." So the sun and the stars, the divinely appointed timekeepers, bear their witness to the accuracy of the historical record.