This is an English version of an Urdu treatise – Twenty-three Great Objectives of Building The House of Allah – a series of Friday sermons delivered by the third successor of the Promised Messiah^(as) in 1967. The sermons are one of the finest and sublimest commentaries on the verses related to the Ka’bah, the House of Allah, and expound how magnificently the twenty-three objectives related in the verses have been fulfilled by the advent of the Holy Prophet Muhammad^(saw). As the Ka’bah was the centre for all mankind at the outset, this House of Allah, again, was meant to become a centre for the unification of mankind in the latter and consummate time, so as, both, the Prophet and Qibla of human unification may be joined to belong to one place. Allah wants the Jama’at Ahmadiyya to realize the Divine wisdom behind the foundation of the Ka’bah, so that, they are considered the people of understanding the sight of Allah and join the group of those purified ones who are showered upon the grace of Allah all the time.