Laypersons. When a lay member of a local church has accepted membership, license to preach, or ordination from any other religious organizations, or is engaging in independent church or missionary work, his or her membership in the local church shall, because of that fact, immediately cease, except in case that person shall secure the annual written approval of the local church board of the church in which said membership is held, and the annual written approval of the District Advisory Board of the district in which that church is located.