Ellicott's Commentary On The Whole Bible
2 Thessalonians 2 - Introduction
II.
The first chapter had encouraged the Thessalonians under persecution by the thought of the reality of the Advent. The author has not in the least changed his opinion about the Advent since writing the First Epistle. It is still a matter of most practical comfort: “a very present help.” But now, in clear tones, he warns the Thessalonians against supposing that the “end” was “by-and-by” (Luke 21:9). He had, in fact, taught them so from the outset, and had even then pointed out to them a sign, unaccomplished as yet, which they must see accomplished before the Advent should come.