That God's Spirit refers to his breath and power through which he has achieved all things and is everywhere present. It is Holy because it is 'of God' and used by him for specific activities - revelation of his thoughts, conception of his Son, establishment of the early Christian community and the guidance of nations and individuals to achieve his purpose. It is always his power, never man's - in the past men possessed that power to heal and to teach at the direction of God.

They were specifically given that power for 'a season', which was subsequently withdrawn. Today, God's power is now revealed to us in His word "you received the word of God ... which also effectually works in you that believe." (1 Thessalonians 2:13)

Who are the Christadelphians?
The Bible
God
Jesus Christ
Promises & Prophecies
Sin & Death
Holy Spirit
Second Coming
Salvation
Baptism
Descipleship