"know this" or "you can be sure of this." Yahweh says this to emphasize that it is not because the people are good that he will restore them. This phrase can be moved to the beginning of the verse. (See: [[rc://en/ta/man/translate/figs-activepassive]])
The words "ashamed" and "disgraced" share similar meanings. Together they emphasize the intensity of the shame. Alternate translation: "So be very ashamed" (See: [[rc://en/ta/man/translate/figs-doublet]])