1、Trinitarian theology is a key concept in Christianity, which asserts that God exists as three persons: the Father, the Son, and the Holy Spirit.

三一论神学是基督教的一个关键概念，它声明上帝以三个位格存在：父、子和圣灵。

2、The trinitarian belief is fundamental to many Christian denominations, including Catholicism and Protestantism.

三位一体的信仰对许多基督教教派来说是基础，包括天主教和新教。