St. John Chrysostom on Faith Alone - A.D. 391

"He that believes in the Son has everlasting life" . . "Is it enough, then to believe in the Son," someone will say, "in order to have everlasting life?" By no means! Listen to Christ declare this Himself when He says, "Not everyone who says to Me, 'Lord! Lord!' shall enter into the kingdom of heaven", and the blasphemy against the Spirit is alone sufficient to cast him into hell. But why should I speak of a part of our teaching? For if a man believe rightly in the Father and in the Son and in the Holy Spirit, but does not live rightly, his faith will avail him nothing toward salvation.

[1] St. John Chrysostom. Homilies on the Gospel of John {ca. A.D. 391}. The Faith of the Early Fathers. Volume II. Pg 108. William A. Jurgens