EXHIBIT 23 CONSENT OF INDEPENDENT AUDITORS We consent to the incorporation by reference in Registration Statement No. 333-68595 on Form S-8 of Commercial National Financial Corporation of our report dated May 13, 2004 included in this Annual Report on Form 11-K of Commercial Bank Employee Savings and Stock Ownership Plan for the year ended December 31, 2003. Crowe Chizek and Company LLC Grand Rapids, Michigan