This scripture was written long before in God's word.
# Have you not read this scripture?
Jesus reminds the people of a scripture passage. He uses a rhetorical question here to rebuke them. This can be written as a statement. AT: "Surely you have read this scripture." or "You should remember this scripture." (See: [[rc://en/ta/man/translate/figs-rquestion]])
# has been made the cornerstone
This can be stated in active form. AT: "the Lord made into the cornerstone"