From today's devotional
There is more to Christian living than simply loving other Christians. We must be responsible in all areas of life. Some of the Thessalonian Christians had adopted a life of idleness, depending on others for handouts. Some Greeks looked down on manual labor. So Paul told the Thessalonians to work hard and live a quiet life.
You can't be effective in sharing your faith with others if they don't respect you. Whatever you do, do it faithfully and be a positive force in society.