More about Berkouwer, see The Theology Of G C Berkouwer
Berkouwer’s work on Faith and Justification is undergirded by this foundation – principle:
“The character of faith resolves all tensions between objectivity and subjectivity, For faith has significance only in its orientation to its object – the grace of God” (p. 29).
His work on Faith and Sanctification is undergirded by the same principle:
“The sanctification … demanded is always an implicate of the sanctification that originates in God’s mercy. Hence the sanctification of believers is never an independent area of human activity … we can speak truly of sanctification only when we have understood the exceptionally great significance of the bond between Sola-fide and sanctification … the Sola-fide … a confession of ‘By grace alone we are saved’ … is the only sound foundation for sanctification” (pp. 26, 42-43, emphasis original).
His work on Faith and Perseverance is built on this same foundation:
“The perseverance of the saints is not primarily a theoretical problem but a confession of faith … a song of praise to God’s faithfulness and grace” (p. 14, emphasis mine).
Berkouwer’s principle for understanding justification, sanctification and perseverance may be summed up thus: