Thank you anon for posting that.
Reading Gospel of Thomas now.
Came across this
>(66) Jesus said, "Show me the stone which the builders have rejected. That one is the cornerstone."
–cornerstone– as in FIND THE CORNERSTONE.
anons looking in wrong place for Q's cornerstone? Sence search focuses on something hidden but in a key part/position, but something that was USED. Never thought keystone could be something (((they))) rejected, and therefore was NOT used.