how does paul end his second letter to the thessalonians
Paul ends this letter by saying, "I, Paul, write this greeting with my own hand, and this is a distinguishing mark in every letter; this is the way I write. The grace of our Lord Jesus Christ be with you all" (2 Thess 3: 17 -- 18). Macarthur writes, "Paul added an identifying signature (cf. 1 Cor. 16: 21; Col. 4: 18) so his readers could be sure he was truly the author."