A massive stone, usually distinct from the foundation, Jer 51:26; and so placed at the corner of the building as to bind together the two walls meeting upon it. Such a stone is found at Baalbek, twenty-eight feet long, six and a half feet wide, and four feet thick.

Our Lord is compared in the New Testament to a corner stone in three different points of view. First, as this stone lies at the foundation, and serves to give support and strength to the building, so Christ, or the doctrine is the most important feature of the Christina religion-as a system of truths, and as a living power in the souls of men. Further, as the corner stone occupies an important and conspicuous place, Jesus is compared to it, 1Pe 2:6, because God has given him, as the Mediator, a dignity and conspicuousness above all others. Lastly, since men often stumble against a projecting corner stone, Christ is so called, Mt 21:42, because his gospel will be the cause of aggravated condemnation to those who reject it.