Moses: who did he worship?

You have a great point, I was thinking about it before. Why is it that all the Prophets talked about God as being one, yet this is not what the Christan's believe.

They have their own beliefs which go against all the teachings of the previous Prophets. If the trinity had been true then why didn't the old testament mention it and why didn't the Prophets mention it.

Answer is this was added to the message after Jesus (upon him peace) maybe Paul? or a certain roman emperor?