And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters.
All Commentaries on Genesis 1:2 Go To Genesis 1
Ambrose of Milan
AD 397
The Spirit fittingly moved over the earth, destined to bear fruit because by the aid of the Spirit it held the seeds of new birth which were to germinate according to the words of the prophet: “Send forth thy Spirit and they shall be created and thou shalt renew the face of the earth.”