What Old Testament analogy does Peter use in Acts 4?
Peter uses the Old Testament analogy of the chief cornerstone, the head of the corner, which the builders failed to recognize and dumped in a vacant lot. He applies this stone to Christ, the rock of salvation, who should have held all the architecture together.
Les explains that Peter is reaching back to an Old Testament analogy: Christ is the chief cornerstone, the head of the corner. Les says this is the stone that should have held all the architecture together. He also relates a legend, not Scripture, about the building of Solomon's temple: because everything was pre-cut at the quarry, no hammer or chisel was heard at the temple site. The chief cornerstone was brought in ahead of time, but the engineers and architects could not recognize it, so they dumped it in a vacant lot where weeds grew. In arch architecture, the top stone supports everything. That rejected stone pictures Christ, the rock of salvation, whom the builders ignorantly set aside.