However, the master has something to say comes from "the son's words are like the master's". How to understand what sentence patterns?

I don't know any sentence patterns, just understand. The key is to understand "promising", for whom, it is the object of doing things, and promising can be understood as an object. Then this sentence can be interpreted as: even so, what the master said should be aimed at someone, right? Or it can be interpreted as: Even so, the master said this for another reason (innuendo must be related to someone)?