They experienced similar hostility from other Thessalonians just as the first believers experienced persecution from the Jewish leaders. Alternate translation: "became like the churches..."
## from your own countrymen ##
"from other Thessalonians"
## They forbid us to speak ##
"They seek to make us stop speaking"
## to always fill up their sins ##
"to continue to sin"
## Wrath has come on them ##
"God's punishment has come on them" or God's anger has come on them"