This just a short quote from John Calvin’s Golden Booklet of the True Christian Life. This is why I enjoy reading Calvin. He recognizes that doctrine is not merely cerebral stuff. He writes with the purpose of reaching the mind and heart, to point us to Christ and encourage us towards obedience.
Christianity is a doctrine not of the tongue, but of the life, and is not apprehended merely by the intellect and memory like other sciences, but it is revealed only when it possesses the whole soul and finds its seat and habitation in the innermost recesses of the heart. – John Calvin