This is a title used only in this book (i.5). Many kings are mentioned and referred to in the book: but the Lord Jesus comes as their |Prince;| |King of kings and Lord of lords.|
The word is (...) (archon), and occurs in the New Testament 37 times. It is used of earthly rulers, and spirit rulers of this age; also of Christ (only of Christ) in relation to the earth; but never in relation to or in connection with the Church.
He it is of whom His God and Father has declared, |I will make Him my first-born, higher than the kings of the earth| (Ps. lxxxix.27).
It is in connection with the earth that He comes, in Revelation, and hence this title is used. Another testimony to the truth of our proposition.