Jesus says he doesn’t speak his own words but what the Father commanded him to say.

John 12 ⁴⁹ For I have not spoken on my own authority, but the Father who sent me has himself given me a commandment—what to say and what to speak. ⁵⁰ And I know that his commandment is eternal life. What I say, therefore, I say as the Father has told me.”

The Father is the only true God. John 17:3

John 17:3 ³ And this is eternal life, that they know you, the only true God, and Jesus Christ whom you have sent.

The Holy Spirit is the Father’s Spirit. We can clearly see this by looking at two verses, Matthew 12:28 and John 14:10

Matthew 12 ²⁸ But if it is by the Spirit of God that I cast out demons, then the kingdom of God has come upon you.

John 14 ¹⁰ Do you not believe that I am in the Father and the Father is in me? The words that I say to you I do not speak on my own authority, but the Father who dwells in me does his works.

By reading these two verses we know that he is using the Spirit of God or Holy Spirit to cast out demons and we also know that it is the Father doing the works. In order for both of these to be true, the Spirit of God is the Father’s Spirit. Jesus is not telling us it is two parts of the trinity that man wants you to believe.

The Father is greater than I. John 14:28

John 14 ²⁸ You heard me say to you, ‘I am going away, and I will come to you.’ If you loved me, you would have rejoiced, because I am going to the Father, for the Father is greater than I.

Jesus prays to the Father. John 17 and many other verses.

Jesus teaches us to pray and tells us to pray to the Father. Luke 11:2-4

² And he said to them, “When you pray, say:

“Father, hallowed be your name.
Your kingdom come.
³ Give us each day our daily bread,^[a]
4 and forgive us our sins,
    for we ourselves forgive everyone who is indebted to us.
And lead us not into temptation.”

Jesus says, God sent him and told him exactly what to tell us. John 12:49

John 49-50 ⁴⁹ For I have not spoken on my own authority, but the Father who sent me has himself given me a commandment—what to say and what to speak. ⁵⁰ And I know that his commandment is eternal life. What I say, therefore, I say as the Father has told me.”

Jesus quickly corrects people who say or think he is God, and/or if they think he claims to be God. Mark 2:7, Luke 5:21, John 5, and John 8

Mark 2 ⁷ “Why does this man speak like that? He is blaspheming! Who can forgive sins but God alone?” ⁸ And immediately Jesus, perceiving in his spirit that they thus questioned within themselves, said to them, “Why do you question these things in your hearts? ⁹ Which is easier, to say to the paralytic, ‘Your sins are forgiven,’ or to say, ‘Rise, take up your bed and walk’? ¹⁰ But that you may know that the Son of Man has authority on earth to forgive sins”—he said to the paralytic—

Luke 5 ²¹ And the scribes and the Pharisees began to question, saying, “Who is this who speaks blasphemies? Who can forgive sins but God alone?” ²² When Jesus perceived their thoughts, he answered them, “Why do you question in your hearts? ²³ Which is easier, to say, ‘Your sins are forgiven you,’ or to say, ‘Rise and walk’? ²⁴ But that you may know that the Son of Man has authority on earth to forgive sins”—he said to the man who was paralyzed—“

John 5 ¹⁸ This was why the Jews were seeking all the more to kill him, because not only was he breaking the Sabbath, but he was even calling God his own Father, making himself equal with God. ¹⁹ So Jesus said to them, “Truly, truly, I say to you, the Son can do nothing of his own accord, but only what he sees the Father doing. For whatever the Father does, that the Son does likewise. ²⁰ For the Father loves the Son and shows him all that he himself is doing. And greater works than these will he show him, so that you may marvel. ²¹ For as the Father raises the dead and gives them life, so also the Son gives life to whom he will. ²² For the Father judges no one, but has given all judgment to the Son, ²³ that all may honor the Son, just as they honor the Father. Whoever does not honor the Son does not honor the Father who sent him. ²⁴ Truly, truly, I say to you, whoever hears my word and believes him who sent me has eternal life. He does not come into judgment, but has passed from death to life.

John 8 ²¹ So he said to them again, “I am going away, and you will seek me, and you will die in your sin. Where I am going, you cannot come.” ²² So the Jews said, “Will he kill himself, since he says, ‘Where I am going, you cannot come’?” ²³ He said to them, “You are from below; I am from above. You are of this world; I am not of this world. ²⁴ I told you that you would die in your sins, for unless you believe that I am he you will die in your sins.” ²⁵ So they said to him, “Who are you?” Jesus said to them, “Just what I have been telling you from the beginning. ²⁶ I have much to say about you and much to judge, but he who sent me is true, and I declare to the world what I have heard from him.” ²⁷ They did not understand that he had been speaking to them about the Father. ²⁸ So Jesus said to them, “When you have lifted up the Son of Man, then you will know that I am he, and that I do nothing on my own authority, but speak just as the Father taught me. ²⁹ And he who sent me is with me. He has not left me alone, for I always do the things that are pleasing to him.” ³⁰ As he was saying these things, many believed in him.

John 5 is not only telling them Jesus is not God but that he learns from the Father. And John 8 says the Father taught him. You should read John 8 in more detail but it is so long, so the above are just a few verses.

I write this in hopes that it will help you to understand who Jesus says he is.