"your punishment will end." The abstract noun punishment can be expressed with the verb "punish." Alternate translation: "Yahweh will stop punishing you" (See: [[rc://en/ta/man/translate/figs-abstractnouns]])
Here the sins not being known by others are spoken of as if they are under a cover. Removing the cover represents letting other people know about them. Alternate translation: "he will expose your sins" or "he will cause other people to know how you have sinned" (See: [[rc://en/ta/man/translate/figs-metaphor]])