Knowledge of Religion

(2.) Knowledge of the grounds of religion much enriches the mind. It is a lamp to our feet; it directs us in the whole course of Christianity, as the eye directs the body. Knowledge of fundamentals is the golden key that opens the chief mysteries of religion; it gives us a whole system and body of divinity, exactly drawn in all its lineaments and lively colours; it helps us to understand many of those difficult things which occur in the reading of the word; it helps to untie many Scripture knots.

Thomas Watson ‘A Body of Divinity’ (A Preliminary Discourse to Catechizing)