And it is THE TRUTH OF SCRIPTURE.
Here is the support that Head Knowledge alone will NOT SAVE:
WHAT KIND OF KNOWLEDGE DID THESE HAVE ? ? ?
Matthew 7:21-23 (HCSB)
21 “Not everyone who says to Me, ‘Lord, Lord!’ will enter the kingdom of heaven, but ⌊only⌋ the one who does the will of My Father in heaven.
22 On that day many will say to Me, ‘Lord, Lord [🖚 Head Knowledge], didn’t we prophesy in Your name, drive out demons in Your name, and do many miracles in Your name?’
23 Then I will announce to them, ‘I never knew you! [🖚 Heart Knowledge] Depart from Me, you lawbreakers!’
Romans 10:9 (NASB)
9 that if you confess with your mouth Jesus as Lord, and believe in your heart that God raised Him from the dead, you will be saved;
Acts 8:37 (NASB)
37 [And Philip said, "If you believe with all your heart, you may." And he answered and said, "I believe that Jesus Christ is the Son of God."]