Or He says this, because all the things which the Apostles of old spoke and suffered amid the darkness of oppression and the gloom of the prison, arc now that the Church is made known through the world and their acts are read, publicly proclaimed. The words, shall be proclaimed on the housetops, are spoken according to the manner of the country of Palestine, where they are accustomed to live on the housetops. For their roofs were not after our way raised to a point, but flat shaped, and level at the top. Therefore He says, proclaimed on the housetops; that is, spoken openly in the hearing of all men.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).