Holiness consists mainly of two points:
1. being made a partaker of the spirit of holiness whereby, as born of God, we are made meet to be partakers of the inheritance of the saints in light; set our affections on things above, where Christ sitteth on the right hand of God; have our conversation in heaven; put on the new man which is renewed in knowledge after the image of him which created him; live a life of faith in the Son of God, and beholding, as in a glass, the glory of the Lord, are changed into the same image from glory to glory, even as by the Spirit of the Lord.
To be thus spiritually-minded, to be thus brought near unto God through his dear Son, to walk before him in the light of his countenance, and to know something of spiritual communion with the Lord of life and glory as sitting on his mercy-seat in the fulness of his risen power, and in the heights, depths, lengths, and breadths of his dying love—this to taste, to handle, to experience, and to enjoy is to be made a partaker of true holiness, and to be sanctified by the Spirit of God as an indwelling Teacher, Guide, Advocate, and Comforter. And if we know nothing of these things, at least in some small measure, or are not looking after and longing for them to be brought into our heart by a divine power, we give but little evidence that the grace of God has reached our heart and renewed us in the spirit of our mind.
2. The second branch of holiness is a life, conduct, and conversation agreeable to the precepts of the gospel; and the one springs out of the other. "Make the tree good," said our blessed Lord, "and his fruit good, for the tree is known by his fruit." Gospel fruit must grow upon a gospel tree, and thus the fruits of a holy and godly life must spring out of those divine operations of the Holy Ghost upon the heart of which we have just spoken. Thus to speak, live, and act is to be "holy in all manner of conversation," that is in our daily walk; and is a fulfilling of the precept which God gave of old to his typical people Israel, and quoted in the New Testament to shew that it is spiritually fulfilled in that peculiar people whom he calls by his distinguishing grace under the gospel.