God is a Spirit: and they that worship him must worship him in spirit and in truth.
All Commentaries on John 4:24 Go To John 4
Tertullian of Carthage
AD 220
On the ground that "God is a Spirit".
In what form of God? Of course he means in some form, not in none. For who will deny that God is a body, although "God is a Spirit? ".
As being more proximate in character to God.