Indeed I can put it, finally like this; the ultimate cause of all spiritual depression is unbelief. For if it were not or unbelief even the devil could do nothing. It is because we listen to the devil instead of listening to God that we go down before him and fall before his attacks.

The Scriptures do grant clearly by their teaching that it is possible for a Christian to be depressed. Not that they justify this, but they do recognize the fact.
Topics: Depression
Source: Spiritual Depression - Its Causes and its Cures, 1965, p. 107

A depressed Christian is a contradiction in terms, and he is a very poor recommendation for the gospel. Nothing is more important, therefore, than that we should be delivered from a condition which gives other people, looking at us, the impression that to be a Christian means to be unhappy, to be sad, to be morbid, and that the Christian is one who "scorns delights and lives laborious days."
Topics: Depression
Source: Spiritual Depression - Its Causes and its Cures, 1965, p. 11