Question

Is there no voice worthy than my own
To sound more sweetly in great caesar's ear
For the repealing of my banish'd brother?

Meaning of the above lines

Answer 1

In these lines Metellus Cimber very politely asks Caesar to cancel the order of banishment of his brother. He says that which voice can be more appropriate that his own to appeal Caesar to cancel the order of his own brother's banishment.

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Answer 2

The above qouted lines were spoken by Cassius. He pleaded others to join him in requesting Caeser to allow his brother to enter Rome.