What does the Bible say about false faith?

The Scripture illustrates that a false faith can exhibit various external signs, such as deep conviction for sin, emotional responses, and even performing religious works. For instance, Judas, who betrayed Christ, showed remarkable behavior that, on the surface, appeared to be genuine faith. However, the Bible clarifies that true faith cannot simply be measured by outward acts but must stem from a heart transformed by the Holy Spirit. True faith results in a heart broken over sin, relying solely on Christ for redemption, and submitting to His lordship (Psalm 51; 1 Corinthians 1:30-31; Matthew 6:24). Without these elements, faith may appear genuine but ultimately is false.