I have had a few discussions about faith with non Catholics on this forum, and I have found that all who I have discussed this with have meant by “faith” essentially what I mean (as a Catholic) by “faith, hope, and love.” So I have been wondering, why say faith alone can save us instead of saying faith, hope, and love? I have noticed misunderstanding about this even on the part of those who say only faith. It seems to imply that intellectual assent alone is sufficient for salvation. @JonNC and @Hodos might be interested in this.
They use faith more in the sense of “trust” as well as intellectual assent. Catholics do this as well at times but strictly speaking the “theological virtue” of faith is intellectual assent, which is why James could say that even demons believe, and Paul could say that if he had a faith that could move mountains but had not love, he was nothing, and also, “now these three remain, faith, hope, and love, but the most important of these is love.”
Either way, unless faith is qualified as including all three virtues then it cannot justify us. The error in Sola Fide is in believing that faith is all God wants from us in order to see us as justified, as if it stands in for or replaces or excuses the need for authentic righteousness/justice in man rather than that faith is the
doorway to real justice because it’s the doorway to
God, the communion with Whom is what makes man just to the extent that we continue to abide in Him and He in us, determined by whether or not we decide to remain in that communion and not break it: demonstrated and effected by how we believe and how we live-how we may succeed at or fail to love.
The Church actually teaches that we’re saved by
love alone in a sense:
by Love and
unto love, such that she can teach the following on our particular judgment, quoting St John of the Cross:
"At the evening of life, we shall be judged on our love." (CCC 1022)
We’re saved
by faith,
via faith,
through faith. Faith pertains to the “knowledge of God” that Jesus came to definitively reveal and restore to fallen man-so we
may believe: in His existence, in His goodness and trustworthiness, in His lavish love for man in spite of our sin. This knowledge is to be developed in us such that we possess the direct intimate knowledge, to the extent we’re able, described in the New Covenant prophecy of Jer 31:34:
"No longer will they teach their neighbor, or say to one another, ‘Know the LORD,’ because they will all know me, from the least of them to the greatest," declares the LORD."
That knowledge speaks of relationship or communion, essentially the relationship that Adam shattered at the Fall, the relationship that we’re lost without, the relationship that is finally and fully consummated in the Beatific Vision. This is a relationship that begins or is established with faith. From that communion, a state of justice in itself, God begins to do a work in us:
"I will put my law in their minds and write it on their hearts. I will be their God, and they will be my people." Jer 31:32