You can only be willing to try various approaches, keeping those which typify the vision and create the desired results, and toss or replace what doesn't work. An inspiring statement is lovely, but people interpret things very differently. The people of your organization need specific examples of what behavior is consistent with the vision of the organization. Don't be cheap.
Effective communication requires resources and effort.
Get input from a professional, get a plan and allocate resources to ensure goal-supporting communication. Learn how your style affects the way you work, and how others may receive your communications. Then start tailoring your communications to fit the audience, and use a variety of communication vehicles. By enlisting employees' and customers' perspectives, you're building momentum and support for your vision while gaining valuable insight on potential strengths and weaknesses of your approach. Gain input from customers in similar ways.