Miriam was the daughter of Amram and Jochebed and the sister of Aaron and Moses, the leader of the Israelites in ancient Egypt. The narrative of Moses' infancy in the Torah describes an unnamed sister of Moses observing him being placed in the Nile (Exodus 2:4); she is traditionally identified as Miriam.: 71
In the biblical narrative of The Exodus, Miriam is described as a "prophetess" when she leads the Israelites in the Song of the Sea after the Pharaoh's army is destroyed.
–Wikipedia