John 14:16-17

14:16 Then I will ask the Father, and he will give you another Advocate to be with you forever – 14:17 the Spirit of truth, whom the world cannot accept, because it does not see him or know him. But you know him, because he resides with you and will be in you.

John 14:26

14:26 But the Advocate, the Holy Spirit, whom the Father will send in my name, will teach you everything, and will cause you to remember everything I said to you.