Simplify the following text for a Grade 7 native English-speaking person.
Original: In the words of the Athanasian Creed , an early statement of Christian belief , `` the Father is God , the Son is God , and the Holy Spirit is God , and yet there are not three Gods but one God '' .
Simplified: In the words of the Athanasian Creed , `` the Father is God , the Son is God , and the Holy Spirit is God , and yet there are not three Gods but one God . ''