Legal and Gospel Mortification

Ralph Erskine (1685-1752) was the brother of Ebeneezer Erskine and a defender of the Reformation doctrines of justification and sanctification against the neonomians and legalists of his day. Mortification is the old-fashioned way of saying, “dying to self.” In the Heidelberg Catechism (1563) the Reformed churches confess that the Christian life is a matter of daily dying to self and living, or being made alive, to Christ. There are two different ways of thinking and speaking about “dying to self.” Erskine wrote:

1. Gospel and legal mortification differ in their principles from which they proceed. Gospel mortification is from gospel principles, viz. the Spirit of God [Rom. 8. 13], ‘If ye through the Spirit mortify the deeds of the body, ye shall live’; Faith in Christ [Acts 15. 9], ‘Purifying their hearts by faith’; The love of Christ constraining [2 Cor. 5. 14], ‘The love of Christ constraineth us.’ But legal mortification is from legal principles such as, from the applause and praise of men, as in the Pharisees; from pride of self-righteousness, as in Paul before his conversion; from the fear of hell; from a natural conscience; from the example of others; from some common motions of the Spirit; and many times from the power of sin itself, while one sin is set up to wrestle with another, as when sensuality and self-righteousness wrestle with one another. The man, perhaps, will not drink and swear. Why? Because he is setting up and establishing a righteousness of his own, whereby to obtain the favour of God here is but one sin wrestling with another. Read more»

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  • R. Scott Clark
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    R.Scott Clark is the President of the Heidelberg Reformation Association, the author and editor of, and contributor to several books and the author of many articles. He has taught church history and historical theology since 1997 at Westminster Seminary California. He has also taught at Wheaton College, Reformed Theological Seminary, and Concordia University. He has hosted the Heidelblog since 2007.

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