
Scripture derives its exhortations from the true source, when it not only enjoins us to regulate our lives with a view to God its author to whom it belongs; but after showing us that we have degenerated from our true origin, the law of our Creator, adds, that Christ, through whom we have returned to favour with God, is set before us as a model, the image of which our lives should express. What do you require more effectual than this? Nay, what do you require beyond this? If the Lord adopts us for his sons on the condition that our life be a representation of Christ, the bond of our adoption,–then, unless we dedicate and devote ourselves to righteousness, we not only, with the utmost perfidy, revolt from our Creator, but also abjure the Saviour himself. Then, from an enumeration of all the blessings of God, and each part of our salvation, it finds materials for exhortation.
Ever since God exhibited himself to us as a Father, we must be convicted of extreme ingratitude if we do not in turn exhibit ourselves as his sons. Ever since Christ purified us by the laver of his blood, and communicated this purification by baptism, it would ill become us to be defiled with new pollution. Ever since he ingrafted us into his body, we, who are his members, should anxiously beware of contracting any stain or taint. Ever since he who is our head ascended to heaven, it is befitting in us to withdraw our affections from the earth, and with our whole soul aspire to heaven. Ever since the Holy Spirit dedicated us as temples to the Lord, we should make it our endeavour to show forth the glory of God, and guard against being profaned by the defilement of sin. Ever since our soul and body were destined to heavenly incorruptibility and an unfading crown, we should earnestly strive to keep them pure and uncorrupted against the day of the Lord. These, I say, are the surest foundations of a well-regulated life, and you will search in vain for any thing resembling them among philosophers, who, in their commendation of virtue, never rise higher than the natural dignity of man.
John Calvin. The Golden Booklet on the True Christian Life.