Jonathan Edwards Selected Shor
Hence also we may more easily receive and understand a doctrine that seems to be taught us in the Sacred Scripture concerning grace in the heart--viz., that it is no other than the Spirit of God itself dwelling and acting in the heart of a saint,-- which the consideration of these things will make manifest:--
(1.) That the Sacred Scriptures don't only call grace spiritual, but "spirit."
(2.) That when the Sacred Scriptures call grace spirit, the Spirit of God is intended; and that grace is called "Spirit" no otherwise than as the name of the Holy Ghost, the Third Person in the Trinity is ascribed to it.
1. This holy principle is often called by the name of "spirit" in Sacred Scripture. So in John 3:6-- "That which is born of the Spirit is spirit." Here by flesh and spirit, we have already shewn, are intended those two opposite principles in the heart, corruption and grace. So by flesh and spirit the same things are manifestly intended in Gal. 5:17-- "For the flesh lusteth against the Spirit, and the Spirit against the flesh: and these are contrary the one to the other; so that ye cannot do the things that ye would." This that is here given as the reason why Christians cannot do the things that they would, is manifestly the same that is given for the same thing in the latter part of the 7th chapter of the Romans. The reason there given why they cannot do the things that they would is, that the law of the members war with [and] against the law of the mind; and, therefore, by the law of the members and the law of the mind are meant the same as the flesh and Spirit in Galatians. Yea, they are called by the same name of the flesh and Spirit there, in that context, in the continuation of the same