1 Now regarding the arrival of our Lord Jesus Christ and our being gathered to be with him, we ask you, brothers and sisters,2 not to be easily shaken from your composure or disturbed by any kind of spirit or message or letter allegedly from us, to the effect that the day of the Lord is already here.
- Paul addresses a specific anxiety among the Thessalonians: a false belief that the Day of the Lord had already begun.
- He grounds his appeal in two key future events: Christ's return ("arrival," Greek *parousia*) and the believers' gathering to meet Him ("being gathered," Greek *episynagōgē*).
- The community was being unsettled ("shaken," "disturbed") by misleading claims.
- Potential sources of false teaching included supposed spiritual revelations ("spirit"), verbal reports ("message"), or forged letters ("letter allegedly from us").
- This highlights the importance of doctrinal stability and discerning truth from error in the early church.
- The Thessalonians' suffering (mentioned in 1 Thessalonians) might have made them susceptible to believing the Day of the Lord's tribulations were already upon them.
- Paul writes to correct this misunderstanding and restore their composure based on apostolic teaching.