Who could be the corner-stone but He, the living and precious stone Who supports by His teaching two buildings and makes them one? For He set up the Mosaic building, which was to last till His day, and then fitted on to one side of it our building of the Gospel. Hence He is called the corner-stone. And it is said in the Psalms: "22. The stone which the builders refused, the same is become the head of the corner. 23. This is of the Lord, and it is marvellous in our eyes."