call somebody/something to order
From Longman Dictionary of Contemporary Englishcall somebody/something to ordercall somebody/something to orderformalTCOBEY to tell people to obey the rules of a formal meeting → callExamples from the Corpuscall somebody/something to order• I now call this meeting to order.• Having had the bloody debris removed, he called the cast to order and began work.• The new Senate president banged down the gavel and called the chamber to order with a strong firm voice.