Sola Fide
Sola fide teaches that man is justified by faith alone, without works: believing in Christ would suffice for salvation, and his deeds would add nothing. Scripture says the contrary, and it says so in the very words that seemed to grant this thesis.
The only words “faith alone”
The expression “faith alone” appears only once in all of Scripture, and there it is denied, word for word. “You see that a person is justified by works, and not by faith alone.” James 2:24 The one passage where the Bible joins these two words at once separates them: it expressly refuses that faith alone justifies.
A dead faith does not save
Faith that produces nothing is without life, and what is dead does not save. “What good is it, my brothers, to say one has faith if one does not have works? Can such faith save?” James 2:14 Even the demons believe, and that does not save them. “You believe that there is one God? You do well. The demons also believe it, and they tremble.” James 2:19 To believe that God exists and that Christ is Saviour, without that faith showing itself in deeds, is the faith of demons. “Faith without works is dead.” James 2:26
The faith that works through love
What saves is faith made alive by love. “in Christ Jesus neither circumcision nor uncircumcision counts for anything, but only faith working through love.” Galatians 5:6 A faith without charity, even entire, is worth nothing. “If I had the gift of prophecy, and understood all mysteries and all knowledge, and had faith in its fullness, the faith that moves mountains, but had not charity, I would be nothing.” 1 Corinthians 13:2 Faith alone, cut off from the charity and the works it inspires, is precisely the faith Scripture declares unable to save.
What Scripture truly excludes
It is objected that Scripture elsewhere sets faith against works and justifies man without them. “For we hold that a person is justified by faith, apart from the works of the Law.” Romans 3:28 But the works set aside here are the works of the law, circumcision and the rites of the Old Covenant, and every claim to merit the first grace by oneself, as a wage owed. “To one who does a work, the wage is not credited as a gift but as something owed.” Romans 4:4 Salvation begins by pure grace, which none can buy. “For by grace you have been saved through faith, and this is not from yourselves, it is the gift of God. It does not come from works, so that no one may boast.” Ephesians 2:8-9 What Scripture excludes is the man who would save himself by his own powers and boast of it; what it requires is the faith that, once grace is received, works through charity. Abraham shows it, the very man on whom Paul founds justice by faith. “Abram had faith in the Lord, and the Lord counted it to him as righteousness.” Genesis 15:6 The Scripture that utters this word itself refers it to the act: James cites it after the offering of Isaac, and sees in it its fulfilment. “You see that faith was working with his works, and that by works faith was brought to its perfection. So the Scripture was fulfilled: Abraham had faith in God, and it was counted to him as righteousness.” James 2:22-23 The faith counted to Abraham was not a faith without work: it is this living faith, which obeys to the point of offering his son, that God counted to him as righteousness. It is objected finally with the good thief, saved at his last breath without having done anything. But he too did not believe without acting: he acknowledges his fault and accepts his punishment, he rebukes the other criminal, he defends Christ’s innocence. “For us, it is just: we are paying for our deeds; but this man has done nothing wrong.” Luke 23:41 Then he confesses him king at the very moment all mock him. “Jesus, remember me when you come into your kingdom.” Luke 23:42 His faith breaks out in confession, in courage and in supplication: it is again the faith that works through charity that Christ rewards.
Judged by works
On the last day, each will be judged on what he has done, which would make no sense if faith alone sufficed. “The Son of Man is going to come in the glory of his Father, with his angels, and then he will repay each one according to his conduct.” Matthew 16:27 Christ describes this judgement by the deeds done or neglected toward the least, and on these he separates the saved from the lost. “Whatever you did for one of these least of my brothers, you did for me.” Matthew 25:40 To believe does not dispense from acting, and Christ says so himself. “It is not enough to say to me, Lord, Lord! to enter the kingdom of heaven; one must do the will of my Father who is in the heavens.” Matthew 7:21
Made righteous, not merely declared
God makes man righteous by giving him his grace, which renews him within and pours charity into him. This is what the Church defined against sola fide at the Council of Trent, in 1547: justification is not a sentence that covers sin from without, but the real passage from the state of sin to the state of grace, where God pours his justice within man. The same council grants faith a first place, naming it the beginning, the foundation and the root of all justification: it is not alone, but it is first, and from it are born hope and charity. Justification goes beyond an outward declaration that would leave man as he was: God blots out the sin and heals the man. “And hope does not disappoint, because the love of God has been poured into our hearts through the Holy Spirit who was given to us.” Romans 5:5 The grace thus received acts, loves and works: the faith that saves therefore always carries with it the charity and the works it inspires. These works do not reopen the door to pride: born of the grace received, they are still a gift of God before being a merit of man, so that no one boasts of what he did not first receive. In crowning our works, God crowns his own gifts.