Definitive sanctification, as defined by John Frame, is “a once-for-all event, simultaneous with effectual calling and regeneration, that transfers us from the sphere of sin to the sphere of God’s holiness, from the kingdom of Satan to the kingdom of God.”
Progressive sanctification, as defined by Wayne Grudem, is “a progressive work of God and man that makes us more and more free from sin and like Christ in our actual lives.”
Andrew Groves 