Here's why:
* Ethos refers to the speaker's or writer's character, authority, and trustworthiness.
* Credibility is the quality of being believable and trustworthy.
When you establish ethos, you are essentially building credibility with your audience. This means they are more likely to believe your message because they perceive you as knowledgeable, reliable, and trustworthy.
Therefore, credibility is the core concept that ethos embodies when it comes to influencing an audience.