20. The understanding, therefore, of holy Scrip­ture which we consider ought to be deservedly and consistently maintained, is of the following kind. A certain nation is declared by holy Scripture to have been chosen by God upon the earth, which nation has received several names: for sometimes the whole of it is termed Israel, and sometimes Jacob; and it was divided by Jeroboam son of Nebat into two por­tions; and the ten tribes which were formed under him were called Israel, while the two remaining ones (with which were united the tribe of Levi, and that which was descended from the royal race of David) was named Judah. Now the whole of the country possessed by that nation, which it had received from God, was called Judea, in which was situated the metropolis, Jerusalem; and it is called metropolis, being as it were the mother of many cities, the names of which you will frequently find mentioned here and there in the other books of Scripture, but which are collected together into one catalogue in the book of Joshua the son of Nun.