John the Apostle
John 16:13KJV·traditional attribution

Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come.

John Calvin Reformed

13. But when he is come, the Spirit of truth. The Spirit, whom Christ promised to the apostles, is declared to be perfect Master or Teacher “Maistre ou Docteur.” of truth And why was he promised, but that they might deliver from hand to hand the wisdom which they had received from him?

Matthew Henry Presbyterian

As it was usual with the Old Testament prophets to comfort the church in its calamities with the promise of the Messiah (Isa 9:6; Mic 5:6; Zac 3:8); so, the Messiah being come, the promise of the Spirit was the great cordial, and is still. Three things we have here concerning the Comforter's coming: - I. That Christ's departure was absolutely necessary to the Comforter's coming, Joh 16:7.

Commenting on John 16:7-15

John Gill Reformed Baptist

All things that the Father hath are mine,.... Though it is true that the same divine nature the Father is possessed of, the Son is; and the same divine perfections belong to the one, as to the other; and the Son shares in the same glory and felicity the Father does; so that in the utmost extent of the phrase, all that the Father hath...