For example, in the Gospel according to John, (speaking of eternal life) Jesus says, "I am the resurrection and the life. He who believes in me will live, even though he dies." (John 11:25). He makes the offer of eternal life conditional on faith in his own person. This would be blasphemous for anybody other than God. This is an incredible claim. Does he give any evidence for his authority to make such claims? The record gives many details of what happened at this particular day, but at the end we read, "When he had said this, Jesus called in a loud voice, `Lazarus, come out!' The dead mean came out, his hands and feet wrapped with strips of linen, and a cloth around his face. Jesus said to them, `Take off the grave clothes and let him go.'" (John 11:43-44).
When you read the Gospels carefully you will find that consistently
* Jesus talks like he is God,
* Jesus acts like he is God,
* Jesus gives evidence for claiming this authority rightfully by performing miraculous signs.
After 3 years with his disciples we read how one of them asks Jesus and wants to be "shown the Father (God)".
Jesus answered, "Don't you know me, Philip, even after I have been among you such a long time? Anyone who has seen me has seen the Father. ... Believe me when I say that I am in the Father and the Father is in me; or at least believe on the evidence of the miracles themselves." (John 14:10-11).
Jesus expected the disciples and the people around him to recognise his true nature and identity from his words which are only appropriate for God to speak and from his deeds. Jesus does give enough proof and then lets you draw your own conclusions. Everybody could make the claim to be God. And many have made claims to be (a) god throughout history. Only the true God can give true evidence for it and if you have the evidence there is no need for the explicit command to worship anymore. The statement "I am God" adds nothing of substance to the question regarding his identity. His real identity is established by the proof he gives, not by claims each and everybody can make. After he has given the evidence, there is no more need for the statement. Those who are open for the truth will recognise the evidence, those who ignore the evidence won't be convinced either if he adds this specific statement you seem to demand from him. And if you have recognized his true identity, worshiping him is only proper and will nearly be an "automatic" response.In the Gospel according to John, end of chapter 20, and the Gospel according to Matthew, end of chapter 28, we read how Jesus receives worship and affims this. Even though he never demands the worship, he accepts it and confirms it as proper.