Hello OneGOD,
Good question friend.
Luke 3:16
John answered them all, "I baptize you with water. But one more powerful than I will come, the thongs of whose sandals I am not worthy to untie. He will baptize you with the Holy Spirit and with fire."
Holy Spirit and Fire are states seperately, interesting.
First I would like to point out that the Holy Spirit existed in people before Jesus came.
Numbers 11:25
Then the LORD came down in the cloud and spoke with him, and he took of the Spirit that was on him and put the Spirit on the seventy elders. When the Spirit rested on them, they prophesied, but they did not do so again.
Numbers 11:29
But Moses replied, "Are you jealous for my sake? I wish that all the LORD's people were prophets and that the LORD would put his Spirit on them!"
Judges 14:6
The Spirit of the LORD came upon him in power so that he tore the lion apart with his bare hands as he might have torn a young goat. But he told neither his father nor his mother what he had done.
Now Jesus did breath the Holy Spirit on the Apostles, giving them strength to understand and believe, also enabling tnem to forgive sins. Now the Prophets also had the Spirit in them.
Acts 2:1-4
The Holy Spirit Comes at Pentecost
1When the day of Pentecost came, they were all together in one place. 2Suddenly a sound like the blowing of a violent wind came from heaven and filled the whole house where they were sitting. 3They saw what seemed to be tongues of fire that separated and came to rest on each of them. 4All of them were filled with the Holy Spirit and began to speak in other tongues as the Spirit enabled them.
At Pentecost the Apostles are baptized with the Fire of the Holy Spirit, and after this occured they receive the full pwer and gift of the Holy Spirit. Even though the Spirit was in them at times as with the Prophets, they were baptized with the Fire of the Spirit thus they recieved the Spirit as Jesus promised and the Spirit remained with them.
Note the similarity between Penecost and the event in Numbers 11:25. Similar event like Pentecost, but it was temporary.
Isaiah 40:13
Who has understood the spirit of the LORD , or instructed him as his counselor?
The Holy Spirit wasn't fully understood by the Jews, but Jesus knew Him, as the Spirit of God also proceeded from the Father.
Jesus instructed the Holy Spirit as His Counselor, understand that the Spirit is not Muhammed.