The abstract nouns "quarrels" and "disputes" mean basically the same thing and can be translated with verbs.Alternate translation: "Why do you quarrel and dispute among yourselves?" or "Why do you fight among yourselves?" (See: [[rc://en/ta/man/translate/figs-doublet]] and [[rc://en/ta/man/translate/figs-abstractnouns]])
James uses this question to rebuke his audience. This can be translated as a statement. Alternate translation: "They come from your evil desires for things, desires that fight among your members." or "They come from your desires for evil things, desires that fight among your members." (See: [[rc://en/ta/man/translate/figs-rquestion]])
James speaks of desires as they were enemies who waged war against the believers. In reality, of course, it is the people who have these desires who fight among themselves. Alternate translation: "They come from your desires for evil things, by which you end up harming each other" (See: [[rc://en/ta/man/translate/figs-personification]])