"God did, from all eternity, decree to justify all the elect; and Christ did, in the fulness of time, die for their sins, and rise again for their justification. Nevertheless, they are not justified until the Holy Spirit doth in due time actually apply Christ unto them." W.C.F. 11:4. Thus, "the grace of faith…is the work of the Spirit of Christ in their hearts." W.C.F. 14:1.
Christians have "the virtue of Christ's death and resurrection, by His Word and Spirit, dwelling in them." In this way, they become "more and more quickened and strengthened in all saving graces, to the practice of true holiness — without which no man shall see the Lord!" W.C.F. 13:1.