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.
11 Make it your goal to live a quiet life, minding your own business and working with your hands, just as we instructed you before.12 Then people who are not Christians will respect the way you live, and you will not need to depend on others. – 1 Thessalonians 4:11-12