There is only one God:
-yes
-there is only one God per AGE

Old Testament describes the Age of Aries:
-God is ANGRY
-Ram was sacrificed for God
-Ram's horns blowing rituals
-Houses covered in Ram's blood
-Fire symbol of Aries used to prise God
-'Golden Calf', Bull god from previous Age of Taurus is a Satan

New Testament describes the Age of Pisces:
-God is FORGIVING
-Fish is symbol of Jesus
-Disciples are fisherman
-Early Christians call themselves 'Little fishes'
-Christians eat fish every Friday
-Water is used for rituals
-Jesus walked on water and multiplied fish

Each age is around 2,000 years and we are about to enter the age of Aquarius.
Before Age of Pisces and Age of Aries there was the Age of Taurus that started Egyptian and Indian religions - Sacred Cow.
There are 12 Gods that take turns.