1Now Moses was keeping the flock of Jethro, his father-in-law, the priest of Midian, and he led the flock to the back of the wilderness, and came to God’s mountain, to Horeb. 2Yahweh’s angel appeared to him in a flame of fire out of the middle of a bush. He looked, and behold, the bush burned with fire, and the bush was not consumed. 3Moses said, “I will go now, and see this great sight, why the bush is not burned.”
4When Yahweh saw that he came over to see, God called to him out of the middle of the bush, and said, “Moses! Moses!”
He said, “Here I am.”
5He said, “Don’t come close. Take off your sandals, for the place you are standing on is holy ground.” 6Moreover he said, “I am the God of your father, the God of Abraham, the God of Isaac, and the God of Jacob.”
Moses hid his face because he was afraid to look at God.
7Yahweh said, “I have surely seen the affliction of my people who are in Egypt, and have heard their cry because of their taskmasters, for I know their sorrows. 8I have come down to deliver them out of the hand of the Egyptians, and to bring them up out of that land to a good and large land, to a land flowing with milk and honey; to the place of the Canaanite, the Hittite, the Amorite, the Perizzite, the Hivite, and the Jebusite. 9Now, behold, the cry of the children of Israel has come to me. Moreover I have seen the oppression with which the Egyptians oppress them. 10Come now therefore, and I will send you to Pharaoh, that you may bring my people, the children of Israel, out of Egypt.”
11Moses said to God, “Who am I, that I should go to Pharaoh, and that I should bring the children of Israel out of Egypt?”
12He said, “Certainly I will be with you. This will be the token to you, that I have sent you: when you have brought the people out of Egypt, you shall serve God on this mountain.”
13Moses said to God, “Behold, when I come to the children of Israel, and tell them, ‘The God of your fathers has sent me to you,’ and they ask me, ‘What is his name?’ what should I tell them?”
14God said to Moses, “I AM WHO I AM,” and he said, “You shall tell the children of Israel this: ‘I AM has sent me to you.’” 15God said moreover to Moses, “You shall tell the children of Israel this, ‘Yahweh, the God of your fathers, the God of Abraham, the God of Isaac, and the God of Jacob, has sent me to you.’ This is my name forever, and this is my memorial to all generations. 16Go and gather the elders of Israel together, and tell them, ‘Yahweh, the God of your fathers, the God of Abraham, of Isaac, and of Jacob, has appeared to me, saying, “I have surely visited you, and seen that which is done to you in Egypt. 17I have said, I will bring you up out of the affliction of Egypt to the land of the Canaanite, the Hittite, the Amorite, the Perizzite, the Hivite, and the Jebusite, to a land flowing with milk and honey.”’ 18They will listen to your voice. You shall come, you and the elders of Israel, to the king of Egypt, and you shall tell him, ‘Yahweh, the God of the Hebrews, has met with us. Now please let us go three days’ journey into the wilderness, that we may sacrifice to Yahweh, our God.’ 19I know that the king of Egypt won’t give you permission to go, no, not by a mighty hand. 20I will reach out my hand and strike Egypt with all my wonders which I will do among them, and after that he will let you go. 21I will give this people favor in the sight of the Egyptians, and it will happen that when you go, you shall not go empty-handed. 22But every woman shall ask of her neighbor, and of her who visits her house, jewels of silver, jewels of gold, and clothing. You shall put them on your sons, and on your daughters. You shall plunder the Egyptians.”
Jacob was the son of Isaac and Rebekah, born immediately after Esau, and Abraham was his grandfather. He achieved the right of the firstborn by trickery, in offering his older brother, Esau, food in exchange for the birthright, who cared little for this position. He also received the blessing of firstborn from his father Jacob before his death by cunning, and with the assistance of his mother Rebekah.
After his deception of Esau, receiving the blessing from his father, Jacob escaped to his uncle Laban, who in turn deceived Jacob into working for fourteen years for the marriage of Jacob to Leah, and then his beloved Rachel. Laban also sought to deceive Jacob of wages, but God intervened to ensure he would prosper. In a time of trial, when he feared the wrath of Esau, upon returning to the land of Canaan, Jacob had an encounter with God, and his name was changed to Israel, the one who wrestles with God. Even though his early life was characterized by deception, God worked through the situation to ensure that Jacob would be the one in the line of the patriarchs, to create a great nation and ultimately fulfill His purposes in the earth, especially through the future Messiah. The Messiah would guarantee the promise of the land to Abram and a person who would rule over Abraham's descendants, but also He would bring blessings to all the people of the earth (Gen 12:1-3).
In spite of Jacob's early failure by deception, God worked through him, and finally, Jacob became a different type of man after his struggle with God. As one has said,
"Despite Jacob’s faults, God chose him to be the leader of a great nation that still bears his name today. But for this, it is unlikely that we would know much about Jacob, who appears to be in the middle of events while the key players are those around him. There is no great wisdom or bravery in Jacob to speak of, and we are tempted to see him as little more than God’s passive instrument. If we are tempted to think that, because we aren’t in the spotlight performing great acts for God, we are unimportant to Him, then we should consider the life of Jacob and know that, in spite of our failings, God can and will still use us in His plan."
For more on Jacob, see "Who was Jacob in the Bible?", https://www.gotquestions.org/life-Jacob.html