“There is thus clearly a sense in which the message of ‘justification by faith only’ can be dangerous, and likewise with the message that salvation is entirely of grace…. I would say to all preachers: If your preaching of salvation has not been misunderstood in that way, then you had better examine your sermons again, and you had better make sure that you really are preaching salvation that is offered in the New Testament to the ungodly, to the sinner, to those who are enemies of God. There is this kind of dangerous element about the true presentation of the doctrine of salvation.” Martyn Lloyd-Jones
Doctor Lloyd-Jones was referring to Romans 5:20-6:2. "The law was added so that the trespass might increase. But where sin increased, grace increased all the more, so that, just as sin reigned in death, so also grace might reign through righteousness to bring eternal life through Jesus Christ our Lord. What shall we say, then? Shall we go on sinning so that grace may increase? By no means! We died to sin; how can we live in it any longer?"