Servants and disciples are not over those who are their masters.
Goal is not higher power: it's to become like them.
Jesus tells them just like how He is being accused of being Beelzebub. Since they are His disciples He warns them it is very likely they will be accused of the same thing.
He tells them to not fear. Jesus promises things that are covered will be revealed and hidden things will be made known.
King Jesus didn't come to be be served. He came to serve people and care for those that needed it.
Our goal isn't power or authority, it's to serve.
And we should not fear about those who would accuse us of being workers of satan. God promises to reveal truth in all things.