The Gifts of Christmas – The Holy Spirit
Acts 1:4 (KJV) And, being assembled together with them, commanded them that they should not depart from Jerusalem, but wait for the promise of the Father, which, saith he, ye have heard of me.
The gift of the Holy Ghost is the promise of the Father that was mentioned by Jesus in the last chapter of the book of Luke:
Luke 24:49 (AMP) And behold, I will send forth upon you what My Father has promised; but remain in the city [Jerusalem] until you are clothed with power from on high.
Jesus commanded His disciples to wait until they received power before they went forth to minister.
Acts 1:4-8 (KJV) 4 And, being assembled together with them, commanded them that they should not depart from Jerusalem, but wait for the promise of the Father, which, saith he, ye have heard of me. 5 For John truly baptized with water; but ye shall be baptized with the Holy Ghost not many days hence. 6 When they therefore were come together, they asked of him, saying, Lord, wilt thou at this time restore again the kingdom to Israel? 7 And he said unto them, It is not for you to know the times or the seasons, which the Father hath put in his own power. 8 But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth
. After their upper room experience Peter preached and 3000 souls were saved:
Acts 2:1 (KJV) And when the day of Pentecost was fully come, they were all with one accord in one place.
Acts 2:4 (KJV) And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance.
Acts 2:38 (KJV) Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost. (See also: Acts 10:45).