If God calls something sin, it is always sin and therefore, always wrong. If we are given a specific command in Scripture, it is always right for us to obey. But even when there is not a decisive command or, Thou shalt not, there are clear principles in Scripture that can guide us not only in determining right and wrong, but also discerning between acceptable or God’s best. These matters are within the realm of Christian liberty and governed by the principles of Christian liberty.