God is Creator and Ruler of the universe.  He eternally existed in three personalities: 

The Father, the Son and the Holy Spirit.  These three are co-equal and are one God.

In the beginning God created the heavens and the earth.  Genesis 1:1

Then God said, "Let Us make man in Our image, according to Our likeness; let them have dominion over the fish of the sea, over the birds of the air, and over the cattle, over all the earth and over every creeping thing that creeps on the earth." So God created man in His own image; in the image of God He created him; male and female He created them.  Genesis 1:26-27

Then the LORD God said, "Behold, the man has become like one of Us, to know good and evil. And now, lest he put out his hand and take also of the tree of life, and eat, and live forever..."  Genesis 3:22

Before the mountains were brought forth,
         Or ever You had formed the earth and the world,
         Even from everlasting to everlasting, You are God.   Psalm 90:2

Go therefore and make disciples of all the nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit...  Matthew 28:19

Elect according to the foreknowledge of God the Father, in sanctification of the Spirit, for obedience and sprinkling of the blood of Jesus Christ:
Grace to you and peace be multiplied.  1 Peter 1:2

The grace of the Lord Jesus Christ, and the love of God, and the communion of the Holy Spirit be with you all. Amen.  2 Corinthians 13:14

All passages noted on this page are sourced from the New King James Version bible.