Therefore they did set over them taskmasters to afflict them with their burdens. 

And Pharaoh hardened his heart at this time also, neither would he let the people go

And when Pharaoh drew nigh, the children of Israel lifted up their eyes, and, behold, the Egyptians marched after them; and they were sore afraid: and the children of Israel cried out unto the LORD.And they said unto Moses, Because there were no graves in Egypt, hast thou taken us away to die in the wilderness?

And Moses stretched out his hand over the sea; and the LORD caused the sea to go back by a strong east wind all that night, and made the sea dry land, and the waters were divided.

And Miriam the prophetess, the sister of Aaron, took a timbrel in her hand; and all the women went out after her with timbrels and with dances.