Page:Keil and Delitzsch,Biblical commentary the old testament the pentateuch, trad James Martin, volume 1, 1885.djvu/1040

 This being established, it follows that the 22,273 first-born, who were exchanged for the Levites (Num 3:45.), consisted only of the first-born sons who had been born between the time of the Exodus from Egypt and the numbering of the twelve tribes, which took place thirteen months afterwards. Now, if, in order to form an idea of the proportion which this number would bear to the whole of the male population of the twelve tribes of Israel, we avail ourselves of the results furnished by modern statistics, we may fairly assume, according to these, that in a nation comprising 603,550 males above 20 years of age, there would be 190,000 to 195,100 between the ages of 20 and 30. And, supposing that this was the age at which the Israelites married, there would be from 19,000 to 19,500 marriages contracted upon an average every year; and in a nation which had grown up in a land so celebrated as Egypt was in antiquity for the extraordinary fruitfulness of its inhabitants, almost as many first-born, say at least 19,000, might be expected to come into the world. This average number would be greater if we fixed the age for marrying between 18 and 28, or reduced it to the seven years between 18 and 25.