Faith in the Holy Trinity

There is one true and living God, everlasting, without body or parts, of infinite power, wisdom, and goodness — the Creator and Preserver of all things visible and invisible. In this Godhead there are three persons of one substance, power, and eternity: the Father, the Son, and the Holy Spirit.

Go, and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit,
— Matthew 28:19 (WEB)

Note

Wesley took this article virtually unchanged from the 39 Articles of the Church of England. Classical Trinitarian orthodoxy.

Bible references

Deuteronomy 6:4 · Matthew 28:19 · 2 Corinthians 13:14 · Genesis 1:1 · 1 John 5:7 · John 1:1-3