Here "Far be it from you" is an idiom that means the person should never do something like that. Alternate translation: "I would never want you to do something like that" or "You should not want to do something like that" (See: [[rc://en/ta/man/translate/figs-idiom]])
This can be stated in active from. Alternate translation: "you should treat the righteous the same way you treat the wicked" (See: [[rc://en/ta/man/translate/figs-activepassive]])
Abraham used this rhetorical question to say what he expected God to do. Alternate translation: "The Judge of all the earth will certainly do what is just!" or "Since you are the Judge of all the earth, you will surely do what is right!" (See: [[rc://en/ta/man/translate/figs-rquestion]])