He preaches well that lives well.
I'd rather see a sermon than hear one any day; I'd rather one should walk with me than merely tell the way: The eye's a better pupil and more willing than the ear, fine counsel is ...
Preaching is to much avail, but practice is far more effective. A godly life is the strongest argument you can offer the skeptic.
Change this and that and try again. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit. Cras mattis consectetur purus sit amet fermentum.