I am not sure I am comfortable with the word trinity. God is one. As others have brought up, John 1 is the best. Thomas called Him my Lord, my God. Jesus said, I am in the Father and the Father is in me. We don't serve three gods, we serve One.
Job 34:1415 If He set his heart upon man, if He gather unto Himself his Spirit and his Breath; We see the three, Father, Son and Spirit, They are clearly separate, yet He can clearly gather his Spirit and Breath unto himself. We believe the Breath (Word) became flesh. Jesus is the Christ. God is one. I also believe this helps clarify when God said, let Us make man in Our image.
This helps us understand what David said in Ps 110:1 The LORD said unto my Lord, Sit thou at my right hand, until I make thine enemies thy footstool. [2] The LORD shall send the rod of thy strength out of Zion: rule thou in the midst of thine enemies. Jesus is our Lord, the head of Christ is the Father. Ps 45:7 Thou lovest righteousness, and hatest wickedness: therefore God, thy God, hath anointed thee with the oil of gladness above thy fellows. Notice, How God anoints God in this passage. We don't have two gods, In this passage the Father is anointing the son. Ps 78:35 And they remembered that God was their rock, and the high God their redeemer. Here we see the Father and the Son.
In closing, I don't want to make this too long. With the above scripture, especially John 1 we find Jesus in Prov 8:22-36 The LORD possessed me in the beginning of his way, before his works of old. I was set up from everlasting, from the beginning, or ever the earth was. When there were no depths, I was brought forth; when there were no fountains abounding with water.
Before the mountains were settled, before the hills was I brought forth: While as yet he had not made the earth, nor the fields, nor the highest part of the dust of the world. When he prepared the heavens, I was there: when he set a compass upon the face of the depth:
When he established the clouds above: when he strengthened the fountains of the deep: When he gave to the sea his decree, that the waters should not pass his commandment: when he appointed the foundations of the earth: Then I was by him, as one brought up with him: and I was daily his delight, rejoicing always before him; Rejoicing in the habitable part of his earth; and my delights were with the sons of men. Now therefore hearken unto me, O ye children: for blessed are they that keep my ways. Hear instruction, and be wise, and refuse it not. Blessed is the man that heareth me, watching daily at my gates, waiting at the posts of my doors. For whoso findeth me findeth life, and shall obtain favour of the LORD. But he that sinneth against me wrongeth his own soul: all they that hate me love death.
Many believe Christians worship three gods, we don't we worship one God. He is all powerful, nothing is too hard for Him!
In Christ,
Daniel