Westminster Larger Catechism
Q. 9. How many persons are there in the Godhead?
A. There be three persons in the Godhead, the Father, the Son, and the Holy Ghost; and these three are one true, eternal God, the same in substance, equal in power and glory; although distinguished by their personal properties.[35]
Westminster Shorter Catechism
Q. 6. How many persons are there in the Godhead?
A. There are three persons in the Godhead: the Father, the Son, and the Holy Ghost;[20] and these three are one God, the same in substance, equal in power and glory.[21]
Daily Westminster 