John 14:16-19

16And I will ask the Father, and He will give you another Helper (Comforter, Advocate, Intercessor—Counselor, Strengthener, Standby), to be with you forever—

17the Spirit of Truth, whom the world cannot receive [and take to its heart] because it does not see Him or know Him, but you know Him because He (the Holy Spirit) remains with you continually and will be in you.

18“I will not leave you as orphans [comfortless, bereaved, and helpless]; I will come [back] to you.

19After a little while the world will no longer see Me, but you will see Me; because I live, you will live also.