ephesians 4

“Man…needs none of these things for his righteousness and salvation. Therefore he should be guided in all his works by this thought and contemplate this one thing alone, that he may serve and benefit others in all that he does, considering nothing except the need and the advantage of his neighbor.  Accordingly the Apostle commands us to work with our hands so that we may give to the needy, although he might have said that we should work to support ourselves. He says, however, “that he may be able to give to those in need” [Eph. 4:28]. This is what makes caring for the body a Christian work, that through its health and comfort we may be able to work, to acquire, and lay by funds with which to aid those who are in need, that in this way the strong member may serve the weaker, and we may be sons of God, each caring for and working for the other, bearing one another’s burdens and so fulfilling the law of Christ [Gal. 6:2]. This is a truly Christian life. The Freedom of a Christian (1520) in Luther’s Works, volume 31, page 365