After these things the word of the Lord came to Abram in a vision: “Fear not, Abram, I am your shield; your reward shall be very great.” 2 But Abram said, “O Lord God, what will you give me, for I continue childless, and the heir of my house is Eliezer of Damascus?” 3 And Abram said, “Behold, you have given me no offspring, and a member of my household will be my heir.” 4 And behold, the word of the Lord came to him: “This man shall not be your heir; your very own son shall be your heir.” 5 And he brought him outside and said, “Look toward heaven, and number the stars, if you are able to number them.” Then he said to him, “So shall your offspring be.” 6 And he believed the Lord, and he counted it to him as righteousness.
Abram, as he was called then, believed in this promise from God, and though it would mean a profound separation from everything he had ever known, he set out in faith. But it was an impossible journey. As for following the Lord, Abram had no Scriptures, no records of saints who had gone before him. Even his own father Terah was an idol worshipper. And as for the Lord’s promise of land and heirs, Abram was traveling to a place he could not locate on a map to become the father of a great nation, though he had no children of his own.
Abraham believed God, and it was credited to him as righteous. But this promise was about more than boundary lines and heirs. There was a reason for God’s blessing. Abraham understood that the Lord had not come to him merely to make him a wealthy landowner with many sons. This was not why God called him out of Ur.
God had told him, “I am your shield, your very great reward.” God wasn’t calling Abram’s future descendants primarily to land or power. He was calling them to himself. He was ultimately the prize.
Excerpt taken from Behold the Lamb of God by Russ Ramsey (pg 23-25)