In part 1, we looked at those doctrines that are essential to salvation: those that cannot be denied by a person whom Christ has saved…. But how do we know that our faith in God is genuine? After all, Jesus refers to people who were confident in their salvation, who professed Christ as Lord, and even performed miracles in His name; yet, they will not enter heaven. Just imagine living your life, thinking you are a Christian, being confident in your faith in Christ, and then having Him say to you on Judgment Day, “I never knew you. Depart from Me.”
What doctrines are absolutely essential to Christianity? As the Word of God, all Scripture is equally and absolutely authoritative. But not all Scripture is equally clear, nor equally central to salvation. Christians disagree on certain nuanced details, yet are united by our common salvation by God’s grace through faith in Christ. On the other hand, there are people who profess to be Christians, but who deny central, core doctrines of the faith. Where is the line that divides genuine faith from a false faith? At what point does theological error become heresy?