{Of you the builders} (huph' hum(936e) t(936e) oikodom(936e)). The
experts, the architects, had rejected Jesus for their building
( Ps 118:22 ) as Jesus himself had pointed out ( Mt 21:42  Lu
21:17 ). This very Rejected Stone God had made the head of the
corner (either the highest corner stone right under the roof or
the corner stone under the building,  Isa 28:16 ) as Jesus
showed, as Peter here declares and repeats later ( 1Pe 2:6f. ).