God used this rhetorical question to remind Cain of something Cain should have already known. Alternate translation: "You know that if you do what is right, I will accept you" (See: [[rc://en/ta/man/translate/figs-rquestion]])
God speaks of sin as if it were a person. Alternate translation: "But if you do not do what is right, you will desire to sin even more, and then you will do sinful things. You must refuse to obey it" (See: [[rc://en/ta/man/translate/figs-personification]])
Here sin is spoken of as a dangerous wild animal that is waiting for the chance to attack Cain. Alternate translation: "you will become so angry that you will not be able to stop sin" (See: [[rc://en/ta/man/translate/figs-metaphor]])
Yahweh speaks of Cain's desire to sin as if it were a person over whom Cain should rule. Alternate translation: "you must control it so you do not sin" (See: [[rc://en/ta/man/translate/figs-personification]])