I believe that everything that the Spirit of God tells us is found in His Word. Although there are some things that we know are from the Spirit but can’t really pinpoint to a portion of Scripture. There may be supporting but not quite direct verses that give us the reassurance of hearing from the Spirit of God. It’s a feeling that we can’t quite explain because of the possible reactions that it brings forth from both believers and unbelievers. But I like how the great preacher, Charles Spurgeon, explained it.
There are feelings and emotions, tenderness and trembling, joys and delights which we cannot quite link with any special portion of Scripture laid home to the heart, but which seem to steal upon us unawares by the direct operation of the Spirit of God upon the heart.
– Charles Spurgeon
I believe the more that we develop our relationship with Christ and build on that intimacy, the more we become sensitive to the Spirit. The more we become sensitive to the Spirit and founded on the Word of God the more we get those feelings and emotions that are initiated by the Spirit. Of course there’s a fine line between dependence on the Spirit and dependence on your ability to hear the Spirit of God. The latter breeds isolation and pride. Whatever word we may receive from the Spirit of God, there will be people around you who will be able to confirm that word so that you don’t develop an Elijah-syndrome (1 Kings 19:14). Sensitivity to the Spirit of God is an overflow of your relationship with Christ. Seek Him first.