Sola fide or faith alone is a key point of difference between not only Protestants and Catholics but between biblical Christianity and almost all other religions and teachings. The teaching that we are declared righteous by God (justified) on the basis of our faith alone and not by works is a key doctrine of the Bible and a line that divides most cults from biblical Christianity. While most religions and cults teach men what works they must do to be saved, the Bible teaches that we are not saved by works, but by God’s grace through His gift of faith (Ephesians 2:8-9). Biblical Christianity is distinct from every other religion in that it is centered on what God has accomplished through Christ’s finished work, while all other religions are based on human achievement. If we abandon the doctrine of justification by faith, we abandon the only way of salvation. “Now when a man works, his wages are not credited to him as a gift, but as an obligation. However, to the man who does not work but trusts God who justifies the wicked, his faith is credited as righteousness” (Romans 4:4-5). The Bible teaches that those that trust Jesus Christ for justification by faith alone are imputed with His righteousness (2 Corinthians 5:21), while those who try to establish their own righteousness or mix faith with works will receive the punishment due to all who fall short of God’s perfect standard.
Sola fide—the doctrine of justification by faith alone apart from works—is simply recognizing what is taught over and over in Scripture—that at some point in time God declares ungodly sinners righteous by imputing Christ’s righteousness to them (Romans 4:5, 5:8, 5:19). This happens apart from any works and before the individual actually begins to become righteous. This is an important distinction between Catholic theology that teaches righteous works are meritorious towards salvation and Protestant theology that affirms the biblical teaching that righteous works are the result and evidence of a born-again person who has been justified by God and regenerated by the power of the Holy Spirit.