He called Abraham to leave his father's house. From Abraham came a nation. Even when it seemed unlikely. 

Isaac & Jacob ..... Israel was born into 12 tribes.

Israel went in to Egypt in famine and drought. The savior of Egypt who foresaw the famine was of Israel. He was sent ahead, but came in as slave, then prisoner, then to the throne.

After the Pharaoh died, the new one enslaved Israel.

In the fullness of time, God called a deliverer, a Hebrew....Sent ahead.....raised in Pharaoh's palace as an Egyptian prince.

God led His chosen people out of Egypt. He had promised Abraham blessings as a promise. 

He led them by day in a cloud, and by night in a pillar of fire.

Through the red sea, they left captivity, into the wilderness....en-route the promised land.