Every person bears fruit of some kind. Those who are darkness bear bad fruit, and those who are light bear good fruit. The person, therefore, who does not bear some fruit of righteousness in his life has no claim on Christ. There is no such thing as a fruitless Christian. Where there is life, there is evidence of life, just as where there is death, there will be evidence of death. The child of light produces the fruit of light and is called to increase in that production (Col. 1:10).
John MacArthur, Ephesians, p. 210.