God promises to bless all the nations of the world by choosing one man named Abraham to father one people that will be a blessing to all people. Through the life of Abraham we learn how to live by faith in Abraham’s true offspring, Jesus Christ.

Resources:

Genesis 12:1-20
New American Commentary (Genesis 12-50) by Kenneth Mathews
Preach the Word Commentary (Genesis) by Kent Hughes
ESV Study Bible (Genesis Notes)