This one is especially powerful, as I preach my way through Galatians these days ::
“The law requires works of human achievement; the gospel requires faith in Christ’s achievement.
The law makes demands and bids us obey; the gospel brings promises and bids us believe.”
– John Stott, The Message of Galatians (Downers Grove, Ill.; InterVarsity Press, 1968), 71.
(HT: Of First Importance)