Freedom is not only the principle in the Christian life. Freedom is for something. God has set us free for holiness. He has set us free from the guilt and bondage of sin – but not in order that we might become enslaved to the very sins for which Christ died to redeem us!... No action which is contrary to the plain Word of God can ever be legitimate for the Christian. No appeal to spiritual freedom or to providential circumstances can ever make what is ethically wrong anything else but sinful. For the Christian is free only to love and obey the law of God. Therein lies his true freedom.
Sinclair Ferguson