"Free Grace" theology is a strand of Evangelical soteriology that holds that sanctification does not necessarily follow the conversion and justification of a person – that is, those saying that they believe in Jesus do not need to become obedient disciples of him in order to be saved.
This view is certainly controversial, and rejected by many prominent Evangelicals, both Arminians and Calvinists (cf. Lordship salvation controversy). One difficulty with the view, it seems to me, is associated with the salvation of Judas Iscariot.
The Bible refers to Judas Iscariot as a "disciple" of Jesus (John 12:4), but at the same time it seems to indicate that he was not saved (Matthew 26:24, John 6:70). According to Free Grace theologians, is Judas Iscariot an example of a "carnal Christian," someone who "believes in Jesus" but doesn't obey him, and ultimately goes to heaven? Or do they explain Judas in some other way, such as that he was saved and then lost his salvation, or that he was never saved?
Here I'm focusing on modern Free Grace theologians, like L. S. Chafer, Charles Ryrie, Zane Hodges, and Bob Wilkins. If they take different approaches to this question, I'd like an overview of their views.