* **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: [[:en:ta:vol2:translate:figs_activepassive]])
* **the churches were strengthened** - "Paul, Silas, and Timothy strengthened the churches". (See: [[:en:ta:vol2:translate:figs_activepassive]])