Matthew Henry's Concise Commentary

6:1-2 The apostle is very full in pressing the necessity of holiness. He does not explain away the free grace of the gospel, but he shows that connexion between justification and holiness are inseparable. Let the thought be abhorred, of continuing in sin that grace may abound. True believers are dead to sin, therefore they ought not to follow it. No man can at the same time be both dead and alive. He is a fool who, desiring to be dead unto sin, thinks he may live in it.