## authority from the chief priests ##

It is implied that the extent of the power and authority granted Saul was limited to the Jewish people at this point in time. (see: [[rc://en/ta/man/translate/figs-explicit]])

## he is a chosen instrument of mine ##

"Chosen instrument" is an expression for being set apart for service. It can be translated as "I have chosen him to serve me". (See: [[rc://en/ta/man/translate/figs-metonymy]])

## for him to carry my name ##

"to carry my name" is an expression for identifying or speaking out for Jesus. It can be translated as "in order that he might speak about me." (UDB) (See: [[rc://en/ta/man/translate/figs-metonymy]])

##  for the cause of my name ##

This is an expression for, "for telling people about me." (See: [[rc://en/ta/man/translate/figs-metonymy]])