But when he, the Spirit of truth, comes (elthē | ἔλθῃ | aor act subj 3 sg), he will guide you into all truth, for he will not speak on his own, but will speak only what he hears, and he will tell you things yet to come (erchomena | ἐρχόμενα | pres mid ptcp acc pl neut).
Reference
John 16:13
Sequence
399