He closes every letter by praying for GRACE to "all" those whom he addresses, even to those who incurred his reproof: a significant addition to 1 Thessalonians 5:28.
Amen. So A C Delta G f g. Omitted in 'Aleph (') B. Perhaps the response of the congregation after hearing the letter read publicly.
The subscription is spurious, as the letter was written, not "from Athens," but from Corinth.