This epistle was probably written in Ephesus between 95 and 110 AD. The author advises Christians on how to discern true teachers: by their ethics, their proclamation of Jesus in the flesh, and by their love. The original text was written in Koine Greek.

Where was the book of John written?

The Gospel's place and date of composition are also uncertain; many scholars suggest that it was written at Ephesus, in Asia Minor, about 100 ce for the purpose of communicating the truths about Christ to Christians of Hellenistic background.

Who was the first letter of John written to?

1 John. The First Letter of John was apparently addressed to a group of churches where “false prophets,” denounced as Antichrist, denied the Incarnation of Jesus and caused a secession so substantial that the orthodox remnant was sadly depleted.