Westminster Longer Catechism:
Q.8 Are there more Gods than one?
A. There is but one only, the living and true God
A misunderstanding that some religions have toward Christianity is that we teach a polytheistic structure. Unfortunately, some groups under the broad spectrum of the Christian label do teach polytheism..namely the Mormons. As mentioned in a previous post, I reject Mormonism’s claim to be a Christian religion. That aside, the Trinity is a complex doctrine but thankfully we have the creeds and confessions to help us articulate what is taught in the Bible.
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 the personal properties.
One substance, one God, with “different personal properties”. We have chosen the word “persons” to describe these “different personal properties” (and there was no shortage of debate over that) but it is essential to understand that these different persons are the same substance to which equal worship, eternality, and power are ascribed.