Of course, God has set other restraining influences in the community. He has Himself established certain institutions in His common grace which curb man’s selfish tendencies and prevent society from slipping into anarchy. Chief among these are the state (with its authority to frame and enforce laws) and the home (including marriage and family life). These exert a wholesome influence in the community. Nevertheless, God intends the most powerful of all restraints within sinful society to be His own redeemed, regenerate, and righteous people. As R. V. G. Tasker puts it, the disciples are “to be a moral disinfectant in a world where moral standards are low, constantly changing, or nonexistent.”
From: The Message of the Sermon on the Mount (Matthew 5-7): Christian Counter-Culture by John R. W. Stott; the Bible Speaks Today series (Downers Grove: Inter-Varsity Press, 1978), p. 59. Comment on Matthew 5.13.
John R. W. Stott (1921-2011) was Rector of All Soul’s Anglican Church, Langham Place, in London, England, from 1950 to 1975. After his retirement, he carried on an extensive writing and speaking ministry.