When Abram was ninety-nine years old, the Lord appeared to him and said, “I am God Almighty walk before me faithfully and be blameless. Then I will make my covenant between me and you and will greatly increase your numbers.”
Abram fell facedown, and God said to him, “As for me, this is my covenant with you: You will be the father of many nations. No longer will you be called Abram your name will be Abraham, for I have made you a father of many nations. I will make you very fruitful; I will make nations of you, and kings will come from you. I will establish my covenant as an everlasting covenant between me and you and your descendants after you for the generations to come, to be your God and the God of your descendants after you. The whole land of Canaan, where you now reside as a foreigner, I will give as an everlasting possession to you and your descendants after you; and I will be their God.”
Then God said to Abraham, “As for you, you must keep my covenant, you and your descendants after you for the generations to come.
What is Abraham asked to do and what will god do in return?
Abraham is asked to walk befor God faithfully and blamelessly. In return God will make him King Of The Nations. God will give Abraham a new name. And Finaly God will make Abraham fruitfull
Then he said, “I am the God of your father, the God of Abraham, the God of Isaac and the God of Jacob.” At this, Moses hid his face, because he was afraid to look at God.
The Lord said, “I have indeed seen the misery of my people in Egypt. I have heard them crying out because of their slave drivers, and I am concerned about their suffering. So I have come down to rescue them from the hand of the Egyptians and to bring them up out of that land into a good and spacious land, a land flowing with milk and honey—the home of the Canaanites, Hittites, Amorites, Perizzites, Hivites and Jebusites. And now the cry of the Israelites has reached me, and I have seen the way the Egyptians are oppressing them. So now, go. I am sending you to Pharaoh to bring my people the Israelites out of Egypt.”
But Moses said to God, “Who am I that I should go to Pharaoh and bring the Israelites out of Egypt?”
And God said, “I will be with you. And this will be the sign to you that it is I who have sent you: When you have brought the people out of Egypt, you will worship God on this mountain.”
These verses show that God can pick anyone to do good. He picked Moses and Moses was just a sheep tender
Then Saul dressed David in his own tunic. He put a coat of armor on him and a bronze helmet on his head. David fastened on his sword over the tunic and tried walking around, because he was not used to them. “I cannot go in these,” he said to Saul, “because I am not used to them.” So he took them off. Then he took his staff in his hand, chose five smooth stones from the stream, put them in the pouch of his shepherd’s bag and, with his sling in his hand, approached the Philistine. Meanwhile, the Philistine, with his shield bearer in front of him, kept coming closer to David. 42 He looked David over and saw that he was little more than a boy, glowing with health and handsome, and he despised him. 43 He said to David, “Am I a dog, that you come at me with sticks?” And the Philistine cursed David by his gods. 44 “Come here,” he said, “and I’ll give your flesh to the birds and the wild animals!” 45 David said to the Philistine, “You come against me with sword and spear and javelin, but I come against you in the name of the LORD Almighty, the God of the armies of Israel, whom you have defied. 46 This day the LORD will deliver you into my hands, and I’ll strike you down and cut off your head. This very day I will give the carcasses of the Philistine army to the birds and the wild animals, and the whole world will know that there is a God in Israel. 47 All those gathered here will know that it is not by sword or spear that the LORD saves; for the battle is the LORD’s, and he will give all of you into our hands.” 48 As the Philistine moved closer to attack him, David ran quickly toward the battle line to meet him.
This is significant because if he didn't kill Goliath the Israelites would have been slaves.