John 3:5-6 -- “Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God. That which is born of the flesh is flesh; and that which is born of the Spirit is spirit."
The Giver is God, His gift is His Spirit to us to bring us into the supernatural realm. In this realm, we have the power from on high, spiritual abilities, “But you 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 utermost part of the earth” (Acts 1:8).
This power is Spirit from on high in contrast to the senses. This Spirit is holy as opposed to the flesh, which is called by God unholy.
God is Holy Spirit and he can only give that which He is; therefore, the gift from the Giver is of necessity Holy and Spirit. Does this make sense to you? The gift is “Christ in you, the hope of glory” where all is fullness (Ephesians 1:23; 3:19).
The reason for receiving the Holy Spirit: 1) To have power for Christian service, 2) Power for Christian living and 3) Power for effective witnessing. How do we do this? Mark 16:15-18 says, 15) "And he said unto them, Go ye into all the world, and preach the gospel to every creature. 16) He that believeth and is baptized shall be saved; but he that believeth not shall be damned. 17) And these signs shall follow them that believe; In my name shall they cast out devils; they shall speak with new tongues; 18) They shall take up serpents; and if they drink any deadly thing, it shall not hurt them; they shall lay hands on the sick, and they shall recover."
Example: There is potential power in the flow of the water at Niagara Falls, unbridled power until it is converted into usable energy when the water goes over the falls. It is the same when we use our God-given spiritual abilities through His Word, then we can be effective witnesses of the power from above, as His supernatural abilities are released through us.
His Word is truth
According to Numbers 23:19, God is not capable of lying: “God is not a man, that he should lie; neither the son of man, that he should repent: hath he said, and shall he not do it? or hath he spoken, and shall he not make it good?" God means what He says and says what He means and has a meaning for everything he says.
According to Acts 1:8, God has given believers supernatural power (His Word) so they would be able to exercise authority over their circumstances. This power, however, can only be used when the believer has received the new supernatural being inside them (2 Corinthians 5:17).