
The best illustration is in terms of a man (The Holy Spirit) on horseback riding from one place to another. Today he rides one horse, then tomorrow he takes the same journey but on a different horse. The horse he rides today is high-spirited, full of verve and of power. The horse he will ride tomorrow is rather older and has become tired and lethargic. Now in both instances the man riding the horse goes to and from the same places, but the particular way in which the two horses carry him may be altogether different. One may prance about a good deal, but he is kept on the route until he reaches the destination. The mannerisms – the style, as it were – vary tremendously, but both horses are guided and controlled by the same rider, and the result is the same and the destination is the same.
Martyn Lloyd-Jones. Great Doctrines of the Bible.