Teellinck on levels of being of Christians

Willem Teellinck's Path of True Godliness (1600s) is
really a unique work for anyone who knows the Work.
In one section too long to type out he categorizes
level of being regarding Christians:

1. Little Children in Christ

2. Young Men in Christ

3. Fathers in Christ

Basically what distinguishes each level (little
children in Christ, by the way, have experienced
regeneration and have entered the basic level of being
a believer and all that) is awareness of the Kingdom
of Darkness and understanding of ourselves and the
world and the faith as well. The way Teellinck puts
it is very different from how most systematic
theologians present things. Teellinck remember is
interesting because he was a straight, orthodox
Puritan who became a mystic late in life without
losing or rejecting sound biblical doctrine. That is
'Work-like'.

So development in the faith as Teellinck describes it
is developing understanding of the Bible and doctrine
(and seeing things like just why other religions and
ways are not at the level of the Bible and all that,
basically seeing levels of influences); and developing
discernment for good and evil, or being able to see
the Kingdom of Satan and how it operates and how it
assaults a person and being able to handle it and
defend yourself and all that; and also not only
growing in understanding of your own weaknesses and
sins and lusts and so on but increasingly getting more
and more real control over them.

Other things as well.

In this book he also talks of the world in terms that
can be translated 'general law' very easily.

My basic point though is this categorization of three
different levels of development of a Christian is
something that is more Work-like than 'theology'-like.
It's the kind of thing you find in the old Puritans
(Dutch Second Reformation in this case) than in any
modern theologians.

It's a book I'd put in any basic list of theological
works.