God is one God, but He has chosen to be three persons.
Hear, O Israel! The Lord is our God, the Lord is one!
The word trinity is not in the Bible, but the word is used to remind us that God is three persons.
Peter, an apostle of Jesus Christ, To those who reside as aliens, scattered throughout Pontus, Galatia, Cappadocia, Asia, and Bithynia,
who are chosen according to the foreknowledge of God the Father,
by the sanctifying work of the Spirit,
to obey Jesus Christ and be sprinkled with His blood:
May grace and peace be yours in the fullest measure.
1 Peter 1:1-2
We are first introduced to this concept in Genesis 1. “Us” implies that there is more than one person in this decision to make man.
Then God said, “Let Us make man in Our image, according to Our likeness;
and let them rule over the fish of the sea
and over the birds of the sky and over the cattle and over all the earth,
and over every creeping thing that creeps on the earth”
The Trinity is
God the Father – mostly referred to as God or the LORD
God the Son – Jesus
God the Holy Spirit
It is hard to understand how God can be one and yet be three persons. As with all things about God, He is more interested in our believing Him than understanding Him. We like to understand and know things, but God is too big and great for us to understand Him completely. As we believe Him more and more, He will increase our understanding.
I pray that the eyes of your heart may be enlightened,
so that you will know what is the hope of His calling,
what are the riches of the glory of His inheritance in the saints,
and what is the surpassing greatness of His power toward us who