“But now being made free from sin, and become servants to God, you have your fruit unto holiness, and the end everlasting life”.
... holiness is a fruit of freedom from the bondage of sin, and of serving God; holiness begun in regeneration, calling, and conversion, is a fruit of the Spirit; a course of living righteously is a fruit of holiness, as a principle implanted; a gradual increase in holiness is carried on by the Spirit of God in a course of righteousness; and a course of righteousness, from a principle of grace, issues in perfect holiness; "without which no man shall see the Lord" (#Heb 12:14): here it seems to design, that holiness is fruit, or that which is gain and profit to persons, in opposition to sin, in which there is no profit: it is not indeed profitable to God in point of merit; yet holiness, as a principle of grace, is profitable to the saints in point of meetness for glory; and holiness, as it denotes an external course of life, is useful and profitable on many accounts; hereby God is glorified, the doctrine of Christ is adorned, religion is honored and recommended, our own credit, reputation, and peace, are preserved, and our neighbor’s good promoted.
John Gill