The Book of Kings formally excludes Levi and Benjamin, and counts them not. If therefore we join these two tribes to the others in their proportion, the total of the warriors will amount to nineteen hundred and twenty thousand. This is a great number for the little country of Judæa, the half of which is composed of frightful rocks and caverns: but it was a miracle.
It is not for us to enter into the reasons for which the Sovereign Arbiter of kings and people punished David for an operation which he himself commanded to Moses. It still less becomes us to seek why God, being irritated against David, punished the people for being numbered. The prophet Gad ordered the king on the part of God to choose war, famine, or pestilence. David accepted the pestilence, and seventy thousand Jews died of it in three days.
St. Ambrosius, in his book of "Repentance," and St. Augustine in his book against Faustus, acknowledged that pride and ambition led David to make this calculation. Their opinion is of great weight, and we can certainly submit to their decision by extinguishing all the deceitful lights of our own minds.
Scripture relates a new numbering in the time of Esdras, when the Jewish nation returned from captivity. "All this multitude (say equally Esdras and Nehemiah, being as one man) amounted to forty-two thousand three hundred and sixty persons." They were all named by families, and they counted the number of Jews of each family, and the number of priests. But in these two authors there are not only differences between the numbers and the names of families, but we further see an error of calculation in both. By the calculation of Esdras, instead of forty-two thousand men, after computation we find but twenty-nine thousand eight hundred and eighteen; and by that of Nehemiah we find thirty-one thousand and eighty-nine.
We must consult the commentators on this apparent mistake, particularly Dom Calmet, who adding to one of these calculations what is wanting to the other, and further adding what is wanted to both of them, solves all the difficulty. To the computations of Esdras and Nehemiah, as reckoned by Calmet, are wanting ten thousand seven hundred and seventy-seven persons; but we find them in families which could not give their genealogy; besides, if there were any fault of the copyist, it could not destroy the veracity of the divinely inspired text.