These two phrases mean the same thing and mean that the people of Ephraim consider themselves to be very prosperous. (See: [[rc://en/ta/man/jit/figs-parallelism]])
Becoming wealthy by trading is spoken of as finding wealth. Alternate translation: "I have made much money" (See: [[rc://en/ta/man/jit/figs-metaphor]])
These two phrases mean the same thing and emphasize that the people of Ephraim consider themselves to be blameless. Learning that someone has sinned is spoken of as finding sin in that person. Alternate translation: "they will not discover that I have done anything sinful" (See: [[rc://en/ta/man/jit/figs-doublet]] and [[rc://en/ta/man/jit/figs-metaphor]])