Gospel Evidences of Saving Faith by John Owen and published by Reformation Heritage Books.
Gospel grounds and evidences of the faith of God's elect is a four-fold principle:
I. The nature of true saving faith, in securing of the spiritual comfort of believers in this life, is of the highest importance.
II. The way wherein true faith does evidence itself in the souls and consciences of believers, unto their supportment and comfort, under all their conflicts with sin, in all their trials and temptations.
III. Faith will evidence itself by a diligent, constant endeavour to keep itself and all grace in due exercise, in all ordinances of divine worship, private and public.
IV. A peculiar way whereby true faith will evidence itself, by bringing the soul into a state of repentance.