John 16:8, 13

And He, when He comes, will convict the world about [the guilt of] sin [and the need for a Savior], and about righteousness, and about judgment

But when He, the Spirit of Truth, comes, He will guide you into all the truth [full and complete truth]. For He will not speak on His own initiative, but He will speak whatever He hears [from the Father—the message regarding the Son], and He will disclose to you what is to come [in the future].