ציטירנדיקער פּירוש אויף שמואל ב 13:37

הלא תכלם שבעת ימים, “would she not be banned for at least seven days?” G-d refers to such a daughter not being allowed to look at her father’s face as a sign of her shame. We find an example of this in the life of Avshalom, son of David, (Samuel II 13, 37-39) Here we are dealing with two sins Miriam had committed, one against G-d and one against Moses; G-d had spelled it out when He said: בעבדי במשה, “against My servant, against Moses.” Accordingly, if G-d were to apply a strict yardstick, Miriam would have to be ostracised at least for two weeks.