<p>2:14 <i>Unto which He called you through our preaching of the gospel, to the obtaining of the glory of our Lord Jesus Christ</i>- Paul was only with the Thessalonians three weeks at most, during which time he worked day and night to support himself, dodged and endured persecution, and they also had to work. So the number of contact hours was very small (see on 1 Thess. 1:1,9). And yet through that brief witness, they heard their calling, which had been prepared for them from before the beginning (:13) and which if followed, would lead them to obtain the glory of the Lord Jesus. The glory of the Lord Jesus is His moral perfection; and the gift of the Spirit to those who believe the truth and accept the calling was intended to make them holy in their hearts and practice (:13), so that at the last day they would be made fully like the glory of the Lord Jesus.</p>