Modern Christianity, it seems, underestimates the importance of the mind and thinking when it comes to being holy and living godly lives.
Martyn Lloyd-Jones tried to rectify this in his London ministry. His biographer writes:
"… his call to Christians was to think aright about God. That must come first. Not even prayer is to be put before it … His concern was that his hearers should not simply derive comfort from passages of Scripture but that they should think theologically."
Lloyd-Jones once preached:
“We stand fast in this faith by reminding ourselves of it constantly, by reading and thinking about it, by meditating concerning it. This is something for which I would plead at the present time. We must return to a consideration of the terms of the faith…. I plead, in other words, for a revival of the study of theology … It is not enough to cultivate the devotional life. It is essential to ‘stand fast in the faith’ when we are assailed by doubt. And it is essential as against feelings.”
--Iain H. Murray, David Martyn Lloyd-Jones: The Fight of Faith 1939-1981, 30