Now this does not mean that a Christian loses his salvation if he lapses into a sin of the flesh, but that a person who lives continually on such a level of moral corruption gives evidence of not being a child of God. - Campbell
 Campbell, D. K. (1985). Galatians. In J. F. Walvoord & R. B. Zuck (Eds.), The Bible Knowledge Commentary: An Exposition of the Scriptures (Vol. 2, p. 608). Wheaton, IL: Victor Books.