the Spirit of truth, whom the world cannot receive, because it neither sees Him nor knows Him; but you know Him, for He dwells with you and will be in you.
John 14:17
Surrounding context
14:16 And I will pray the Father, and He will give you another Helper, that He may abide with you forever--
14:17 the Spirit of truth, whom the world cannot receive, because it neither sees Him nor knows Him; but you know Him, for He dwells with you and will be in you.
14:18 I will not leave you orphans; I will come to you.