The human will is so divinely helped in the pursuit of righteousness, that he [the believer] receives the Holy Spirit, by whom there is formed in his mind a delight in, and a love of, that supreme and unchangeable good, which is God. By this gift to him of the down payment, as it were, of the free gift, he [the believer] conceives a burning desire to cleave to his Maker. A mans free will, indeed, does not help at all except to sin, if he does not know the way of truth. And even after he begins to know his duty and proper aim, unless he also takes delight in and feels a love for it, he neither does his duty, nor sets about it, nor lives rightly. Now, in order that such a course may engage our affections, Gods love is shed abroad in our hearts, not through the free will which arises from ourselves, but through the Holy Spirit, who is given to us [Rom 5: 5].
Historical Theology (Grand Rapids, MI; Zondervan; 2011) Chapter 24: Sanctification