The nature and principles of love, as the end of the commandment declared in…

First, By the blood of Christ, that cleansing blood: The blood of Christ cleanseth from all sin.

Secondly, It is purified or made pure, by the Spirit of Christ; therefore ⟨p. 53⟩we find these two put together, 1 Pet 1. 2. Through sanctification of the Spirit unto obedience, and sprinkling of the blood of Jesus Christ. As we are purified through the sprinkling of the blood of Jesus Christ; so through the sanctification of the Spirit. The Spirit is pure, and the Spirit is a purifier. The Spirit is compared to water: the Spirit is compared to fire, that purifies, that fetches out the dross and the filth, and makes all pure. And indeed, the impurity which is in the heart of man, is such, as nothing less than the blood of Christ, and therefore of the Spirit can purge it out. The fire of afflictions will not purge out the impurities of the heart. The fire of Hell will not fetch out the dross that is in the hearts of the damned. Nothing but the blood of Christ, nothing but the Spirit of Christ, are able to do it. The blood of Christ meritoriously, the ⟨p. 54⟩Spirit efficiently, and efficaciously. And then,

Thirdly, The heart re-made pure, is so made Instrumentally by the Word. The Word of God is pure, it is as Silver purified in the fire seven times. And the Word of God is a purifier instrumentally; and the usual way by which the heart is re-made pure, is by the Word. Christ saith, John 15. 3. Ye are clean: How? Through the Word that I have spoken. And in general, the Apostle in Ephes. 5. 22, 26