I. They shall speak the language of Canaan, the holy language, the scripture-language; they shall not only understand it, but use it (v. 18); they shall introduce that language among them, and converse freely with the people of God, and not, as they used to do, by an interpreter, Gen. xlii. 23. Note, Converting grace, by changing the heart, changes the language; for out of the abundance of the heart the mouth speaks. Five cities in Egypt shall speak this language; so many Jews shall come to reside in Egypt, and they shall so multiply there, that they shall soon replenish five cities, one of which shall be the city of Heres, or of the sun, Heliopolis, where the sun was worshipped, the most infamous of all the cities of Egypt for idolatry; even there shall be a wonderful reformation, they shall speak the language of Canaan. Or it may be taken thus, as we render it—That for every five cities that shall embrace religion there shall be one (a sixth part of the cities of Egypt) that shall reject it, and that shall be called a city of destruction, because it refuses the methods of salvation.