It has been God's plan since the beginning of time to call out a holy nation, set apart for His name and His glory and he did it all through one man, Abram. God called Abram to leave the life and land that he knew and to trust the Lord's promises that he, Abram, would be the father of multitudes in the land that God would give him. And though that call came with many hardships and trials, the call also came with a great promise; Abram and his descendants would be a blessing to all the world.
"And I will make of you a great nation, and I will bless you and make your name great, so that you will be a blessing." Genesis 12:2