Read: John 1:19-34
Then John gave this testimony: I saw the Spirit come down from heaven as a dove and remain on him. And I myself did not know him, but the one who sent me to baptize with water told me, The man on whom you see the Spirit come down and remain is the one who will baptize with the Holy Spirit. (John 1:32-33)
If you read through the Old Testament you find in it a deep sense of unsatisfied longings. From the very beginning of the Bible people are longing after righteousness and holiness; longing to be better than they are; longing to be free from the struggle with evil within; wishing somehow they could get hold of the evil, self-centered tendency within themselves, and eliminate it.
Have you ever felt that way? There have been times when I wished I could have had a surgical operation to remove my tendency to be sharp, critical, harsh and caustic; when I saw the hurt I caused I wished somehow to be able to stop doing those kinds of things.