24. See
Thomas a Kempis’
De navolging van Christus (Imitation of Christ); title of book
i, chapter 25: ‘Over de ijverige verbetering van ons gansche leven’ (On the diligent improvement of our whole life); cf. also book
iv, chapter 1: ‘Allen, die zich door het geloof aan U hebben verbonden, en hun geheele leven der heiligmaking wijden’ (All those who have bound themselves to you by their faith and devote their whole lives to sanctification). Thomas a Kempis 1986, pp. 33, 134.