“But be filled with the Spirit… to be strengthened with might…. ye shall receive power, after that the Holy Spirit is come upon you….For as many as are led by the Spirit of God, they are the sons of God….The Spirit itself beareth witness with our spirit, that we are the children of God…Now if any man have not the Spirit of Christ, he is none of His…. And hereby we know that He abideth in us, by the Spirit which He hath given us.”
Ephesians 5:18;3:16; Acts 1:8; Romans 8:14,16,9; 1 John 3:24
The Holy Spirit was the highest of all gifts that He [Jesus] could solicit from His Father for the exaltation of His people. The Spirit was to be given as a regenerating agent, and without this the sacrifice of Christ would have been of no avail.
The power of evil had been strengthening for centuries, and the submission of men to this satanic captivity was amazing. Sin could be resisted and overcome only through the mighty agency of the third person of the Godhead, who would come with no modified energy, but in the fullness of divine power.
It is the Spirit that makes effectual what has been wrought out by the world’s Redeemer.
It is by the Spirit that the heart is made pure. Through the Spirit, the believer becomes a partaker of the divine nature.
Christ has given His Spirit as a divine power to overcome all hereditary and cultivated tendencies to evil, and to impress His own character on His Church”, “That He might present it to Himself a glorious Church, not having spot, or wrinkle, or any such thing; but that it should be holy and without blemish.”
You Shall Receive Power, pg.13; Ephesians 5:27
Loud Cry Compendium

