Numbers 12:13-15

13So Moses cried out to the Lord, “O God, I beg you, please heal her!”

14But the Lord said to Moses, “If her father had done nothing more than spit in her face, wouldn’t she be defiled for seven days? So keep her outside the camp for seven days, and after that she may be accepted back.”

15So Miriam was kept outside the camp for seven days, and the people waited until she was brought back before they traveled again.