The simple fact that Jesus prayed to God (the Father) in many passages shows that they are two separate entities. The Christians of Gentile background were so immersed in Paganism that they understood Jesus’ claim to be the “Son of God” as also being God, so they invented the Trinity. Note that the Jews did not consider Moses to be equal to God, even though he spoke with as much divine authority as Jesus would 1500 years later. If the early Christians had been content with Jesus as a new version of Moses, then they would not have had to come up with the absurdity of the Trinity to account for what Jesus was like. But they had to make Jesus look even greater than Moses to make their own religion look greater than Judaism. Good for public relations, bad for intellectual honesty.
No doubt, “orthodox” Christians will point to passages where Jesus appeared to do things only God could do (forgive sins, accept worship) and insist that the Holy Spirit was also a person within the Godhead, but that only illustrates how unreliable the scriptures (and those who interpret them) are. God may be unknowable, but he does not suffer from a multiple personality disorder. The Jews said their god was ONE God. Either that is true or it isn’t. There is NO Trinity.
A direct Bible reference in which Jesus denies being God or equal with God is:
A certain ruler asked him, “Good teacher, what must I do to inherit eternal life?”
“Why do you call me good?” Jesus answered. “No one is good–except God alone.
So here we see Jesus specifically denying that he was God by correcting someone who addressed him as “good”, stating that only God was good. If Jesus had been God, he would not have responded that way.