Charles Ellicott Commentary John 16:14

"He shall glorify me: for he shall take of mine, and shall declare [it] unto you." — John 16:14 (ASV)

He shall glorify me.—The pronoun here is full of emphasis. The thought is that the future guidance of the Spirit, promised in John 16:13, will be the revelation of the many things of Christ Himself which they cannot bear now (John 16:12).

For he shall receive of mine, and shall shew it unto you.—Better, as in John 16:13, ... announce it to you. This is the test of the Spirit: Every spirit that confesseth that Jesus Christ is come in the flesh is of God, and every spirit that confesseth not Jesus is not of God (Compare to the notes on 1 John 4:1–2). The revelation of Christ is not an imperfect revelation which the Holy Spirit is to supplement. It is a full revelation imperfectly received, and His office is to illumine the heart and bring home to it the things of Christ.