Creating a leadership message is about having a point of view. It is the perspective that you bring to the subject material as a leader within the organization. Your perspective on the issue emerges from your role within the organization as well as the content of your leadership character, i.e., what you stand for.
It is important to note, however, that a leader's speaking style on the stump in front of an audience can differ somewhat from that leader's private side. Some of the most dynamic leaders may be quiet and shy off stage. They reserve their passion for the stage and the audience, rather like actors do. Likewise, some leaders who are lively and funny one on one are absolute duds on stage. This occurs because they have been unable to capture their private persona or are unwilling to share it with others in a public forum.
As a leadership communicator, you will be called upon to make your messages public. Why? Because that's how you lead. When a leader keeps everything inside, people are left to their own devices to try and figure out what the leader may, or may not, want. This is a failure of communications and a failure of leadership.