There are numerous examples in this article which indicates he never knew our Lord Jesus. His "...endless hours of therapy--to shed the anger, guilt, and self-hatred that I inherited..." suggest there were other problems in this person's life besides Calvery Chapel.
"They went out from us, but they were not really of us; for if they had been of us, they would have remained with us; but they went out, so that it would be shown that they all are not of us." 1 John 2:19
"For in the case of those who have once been enlightened and have tasted of the heavenly gift and have been made paratakers of the Holy Spirit, and have tasted the good word of God and the powers of the age to come, and then have fallen away, it is impossible to renew them again to repentance." Hebrews 6:4-6