In honor of the Christmas holiday several local, state and national offices will be closed for a portion of this week. The Knoxville and Pella City Halls will be closed both Thursday and Friday. The Marion County Courthouse and Clerk of Court will be closed all day Friday and the Knoxville and Pella Chamber of Commerce offices will close at noon on Christmas Eve. In addition, mail will not be delivered Saturday and all post offices and area banks will be closed Christmas Day. All offices will resume regular business hours Monday, with the exception of the Knoxville Chamber office which will be closed until Tuesday.