* **we know your calling** - "we know that God chose you to become his people" (UDB), or "we know that God chose you to serve him in a special way."
* **we know** - The word "we" refers to Paul, Silvanus and Timothy but not the Thessalonian believers. (See [[en:ta:vol2:translate:figs_exclusive]])
* **but also in power, in the Holy Spirit** - Possible meanings are 1) "Paul and his companions preach powerfully by being enabled by the Holy Spirit" or 2) "The Gospel has a powerful effect on the believers through the conviction work of the Holy Spirit."
* **in much assurance** - "In the same way" (UDB)
* **what kind of men** - "how we conducted ourselves" (UDB)