The Altar of Sacrifice
Exodus 20 v 24 An altar of earth thou shalt make unto me, and shalt sacrifice thereon thy burnt offerings, and thy peace offerings, thy sheep, and thine oxen: in all places where I record my name I will come unto thee, and I will bless thee. 25 And if thou wilt make me an altar of stone, thou shalt not build it of hewn stone: for if thou lift up thy tool upon it, thou hast polluted it. 26 Neither shalt thou go up by steps unto mine altar, that thy nakedness be not discovered thereon.
A quadratic structure like the Kaaba could only be built from hewn stones. Also such an enclosed structure was neither suitable nor sanctioned by God to offer up burnt offerings which was the only acceptable form of ritual worship of God before Moses built the tabernacle. Thus we must conclude once again that Islam is a false religion.