John 16:13-14
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.
14 He shall glorify me: for he shall receive of mine, and shall shew it unto you.
The Holy spirit/ghost is what was sent to lead us to God. It is the guiding spirit and the voice of truth. The question is, how do we know if it is the exact thing speaking to us? Well, I do not think the enemy will tell you to go to church, pray for the sick, and testify of your God. However, it goes so much deeper than that. Whenever you are reading your Bible and feel like there is something you just have to read, pray that God guides you. The Holy spirit will lead you to the exact thing you need to read. Learn to let the spirit lead you and walk in it. It will lead you closer to God then you ever thought possible.