Jesus' Farewell Discourse: The Holy Spirit: The Spirit of Truth

'But when the Helper comes, whom I shall send to you from the Father, the Spirit of truth who proceeds from the Father, He will testify of Me.'
John 15:26
'However, when He, the Spirit of truth, has come, He will guide you into all truth; for He will not speak on His own authority, but whatever He hears He will speak; and He will tell you things to come.'
John 16:13