John 16:13 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.
Jesus is truth but the Holy Spirit is the Spirit of Truth. For some that may sound like a conflicting statement but there is no conflict in the Godhead. The Holy Spirit will guide you in all truth. The Holy Spirit will not testify of Himself. Whatever the Holy Spirit hears Jesus (Truth) speak, He will repeat it.
He will show you things to come. What do you think that means? Is He going to give you the answers to that exam you didn’t study for? No. That is the revelation of the future, prophesy. Do we prophesy? No. The Holy Spirit reveals to us and then we repeat what we have heard or seen.
Is that the primary goal of the Holy Spirit? No, of course not. He is our guide in truth, but to what end?
Psalm 73:21 Thus my heart was grieved, and I was pricked in my reins.
John 3:19-20 And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil. For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved.
Hebrews 10:22-23 Let us draw near with a true heart in full assurance of faith, having our hearts sprinkled from an evil conscience, and our bodies washed with pure water. Let us hold fast the profession of our faith without wavering; (for he is faithful that promised;)
1 John 1:6 If we say that we have fellowship with him, and walk in darkness, we lie, and do not the truth:
Romans 8:1 There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit.