Balance – Create multiple addresses and send from one address to another.

I have a node and use GetNewAddress to generate a new receiving address. Can I transfer the content at that address to one of the other addresses I create using GetNewAddress? Each address appears to have an “amount” attribute. So I assume each address has a balance. So I want to send something from address A to address B. But in the same wallet. How can I do this with an RPC call? Sorry if you don’t understand. I’m still learning Bitcoin RPC. thank you so much.