John said there comes One after me, who is mightier than I, He will baptize you with the Holy Spirit.
He then baptised Jesus and immediately, coming up from the water he saw the heavens parting and the Spirit descending upon Jesus like a dove. The Spirit then drove Jesus into the wilderness to be tempted by Satan, "and was with the wild beasts; and the angels ministered to Him," Mark 1:13.
After John was put in prison, "Jesus came to Galilee, preaching the gospel of the kingdom of God saying, "The time is fulfilled, and the kingdom of God is at hand. Repent, and believe in the gospel," Mark 1:14-15
And this was the gospel, that you will be baptised with the Holy Spirit. The Spirit comes in to drive you to places where you would not want to go, to places he himself would be effective. I hear Jesus say to Peter, "Most assuredly, I say to you, when you were younger, you girded yourself and walked where you wished; but when you are old, you will stretch out your hands, and another will gird you and carry you where you do not wish," John 21:18. He then said, “follow me."
My friend, stretch out your hand, and the Spirit will gird you and carry you forth to battle with the wild beast, to places in the wilderness, where you also will be tempted by Satan, but overcome.
Do not be deceived, "for the kingdom of God is not eating and drinking, but righteousness and peace and joy in the Holy Spirit," Romans 14:17. Also, God’s Spirit has to be happy in you, that you and him may edify another. Allow Him to lead you in the paths of righteousness for his name’ sake, and Jesus said, "However, when He, the Spirit of truth, has come, He will guide you into all truth; for He will not speak on His own authority, but whatever He hears He will speak; and He will tell you things to come. He will glorify Me, for He will take of what is Mine and declare it to you," John 16:13-14.
The Holy Ghost is the gospel, that henceforth, those with Him shall be comforted.