“Godly people must remember that in conscience before God, they are free from the curse of the law, sin, and death, for Christ’s sake; but as far as the body is concerned, they must serve one another in love. Each of us must try to do our duty in our own calling and help our neighbor to the utmost of our power…
Others, as soon as liberty is preached, infer that if they are free, they may do what they like. A thing is their own; why may they not sell it for as much as they can get? They do not obtain salvation by their good deeds, so why should they give anything to the poor? Thus they carelessly shake off the slavery of the flesh and turn the liberty of the Spirit into wantonness and fleshly liberty.
Such people use their bodies and their possessions as they desire, not helping the poor or lending to the needy, but bargaining, snatching, and scraping for themselves by hook or by crook whatever they can get. But even if they laugh us to scorn, we will tell them that they are not free, however much they boast of their liberty…
As for us, we have a commandment from God to preach the Gospel, which offers everyone liberty from the law, sin, death, and God’s wrath freely, for Christ’s sake, if they believe. It is not in our power to conceal or revoke this liberty now proclaimed by the Gospel, for Christ has given it to us freely and purchased it by his death. Nor can we constrain those swine who run headlong into all licentiousness to help other people with their bodies and possessions.
We do what we can; we tell them what they ought to do. If this does not work, we commit the matter to God…Meanwhile we take comfort from the fact that our labor is not lost as far as the godly are concerned.”
Alister McGrath and J.I. Packer in Galatians (Crossway Classic Commentaries): Martin Luther (Wheaton: Crossway, 1998) 262-263.
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