Mat 28:19 NASB95
19 "Go therefore and make disciples of all the nations, baptizing them in the name of the Father and the Son and the Holy Spirit,

1 Cor 12:4-6 NASB95
4 Now there are varieties of gifts, but the same Spirit.
5 And there are varieties of ministries, and the same Lord.
6 There are varieties of effects, but the same God who works all things in all persons.

2 Cor 13:14 NASB95
14 The grace of the Lord Jesus Christ, and the love of God, and the fellowship of the Holy Spirit, be with you all.

The Father is God:

Isa 63:16 NASB95
For You are our Father, though Abraham does not know us And Israel does not recognize us. You, O LORD, are our Father, Our Redeemer from of old is Your name.

Luk 11:2 NASB95
And He said to them, "When you pray, say: 'Father, hallowed be Your name. Your kingdom come.

John 4:23 NASB95
"But an hour is coming, and now is, when the true worshipers will worship the Father in spirit and truth; for such people the Father seeks to be His worshipers.

The Son is God:

John 1:1 NASB95
In the beginning was the Word, and the Word was with God, and the Word was God.

Rom 9:5 NASB95
whose are the fathers, and from whom is the Christ according to the flesh, who is over all, God blessed forever. Amen.

Col 1:15-16 NASB95
15 He is the image of the invisible God, the firstborn of all creation.
16 For by Him all things were created, both in the heavens and on earth, visible and invisible, whether thrones or dominions or rulers or authorities--all things have been created through Him and for Him.

Heb 1:3 NASB95
And He is the radiance of His glory and the exact representation of His nature, and upholds all things by the word of His power. When He had made purification of sins, He sat down at the right hand of the Majesty on high,

The Holy Spirit is God:

Act 5:3-4 NASB95
But Peter said, "Ananias, why has Satan filled your heart to lie to the Holy Spirit and to keep back some of the price of the land?
"While it remained [unsold,] did it not remain your own? And after it was sold, was it not under your control? Why is it that you have conceived this deed in your heart? You have not lied to men but to God."

Jesus claimed equality with the Father:

John 8:58 NASB95
Jesus said to them, "Truly, truly, I say to you, before Abraham was born, I am."

John 10:30 NASB95
"I and the Father are one."