Millions of people think they know Jesus but do not. On judgment day, many will say to him, 'Lord! Lord! We prophesied in your name and cast out demons in your name and performed many miracles in your name.' But he will declare, "I never knew you: depart from me, ye that work iniquity" (Mt 7:22-23) Knowing Jesus is not an intellectual exercise, but an experience of the heart.