The principal cause of the faith that we have delineated thus far is God, the Father of lights, from whom comes every saving good (James 1:17); and the Spirit of faith (2 Cor. 4:13), among whose fruits is numbered faith (Gal. 5:22). Nor can that faith come to us from any other place, because we are blind in mind (Eph. 4:18), stony in heart (Ezek. 11:19), and dead in sins (Eph. 2:1–2). Moreover, God works faith, first, in regeneration, whereby he confers the seed of faith, that by it we may be able to believe at the proper time, once all things needed are supplied. Before this regeneration, as we said, a person is dead to every spiritual good. Second, God works faith in conversion, whereby the seed of faith sends forth shoots, such that we actually believe, take hold of Christ as our one and only Mediator, and having been drawn to him, come (John 6:44), run (Song 1:4), and lean on Christ (Song 8:5). Third, God works faith in sanctification, whereby faith puts out flower and fruit, and is at work through love (Gal. 5:6).

PETRUS VAN MASTRICHT, THEORETICAL-PRACTICAL THEOLOGY, VOLUME 2: FAITH IN THE TRIUNE GOD, 48.