## they went ##

This pronoun refers to Paul, Silas, and Timothy.

## for them to obey ##

"for the church members to obey" or "for the believers to obey."

## that had been written by the apostles and elders in Jerusalem ##

"that the apostles and elders in Jerusalem had written." (See: [[rc://en/ta/man/translate/figs-activepassive]])

## the churches were strengthened ##

"Paul, Silas, and Timothy strengthened the churches." (See: [[rc://en/ta/man/translate/figs-activepassive]])