"As obedient children, not fashioning yourselves according to the former lusts in your ignorance; but as he which hath called you is holy, so be ye holy in all manner of conversation; because it is written, Be ye holy; for I am holy." 1 Peter 1:14-16
Grace lays us under the greatest of all obligations to its free and bountiful Giver, and especially to render a believing obedience to his revealed will and word. It is his free, sovereign, and distinguishing grace alone which makes and manifests us to be his children, and therefore it demands of us, as a feeble and most insufficient tribute of grateful praise, that we should walk worthy of the vocation wherewith we are called, and glorify him in our body and spirit which are his. He that has never known and felt this knows nothing of the riches of God's grace in the manifestation of mercy and love to his soul. Such a one knows, that do what he can, he can never do enough to show forth the praises of him who hath called him out of darkness into his marvellous light, and his grief and burden ever are that, through the power of indwelling sin, he cannot do the things that he would, but is always falling short, always sinning against bleeding, dying love.
To such a one, therefore, the precepts of the gospel are as dear as the promises, and he sees that they are set in the word of truth as "a lamp to his feet and a light to his path," a guiding rule by which, if he could but direct his steps, he would glorify God, walk in peace and love with his people, preserve a good conscience, and adorn the doctrine which he professes in all things. Obedience, therefore, to him is a sweet word, and is viewed by him as a precious portion of that free and everlasting gospel which, in restoring fallen man to God's favour, restores him also to an obedience acceptable in his sight.