Miriam is the sister of Moses and Aaron. As Moses’ and Aaron’s sister she, according to midrash, prophesies Moses’ role and helps secure it by watching over the young baby, seeing to it that Pharaoh’s daughter takes him and that the baby is returned to his mother for nursing. During the Israelites’ trek through the desert, a magical well given on her behalf travels with the Israelites, providing water, healing, and sustenance.